PROGRAMMABLE CONTROLLERS
FX CPU
FX(FX1N,FX1NC)→FX3 series Replacement Guidance
Conversion tool
•GX Works2
•GX Developer Ver. 8
Safety Precautions
(Read these precautions before using.)
Before installation, operation, maintenance or inspection of this product, thoroughly read through and understand
this manual and the associated manuals. Also, take care to handle the module properly and safely.
This manual classifies the safety precautions into two categories:
.
WARNING and
WARNING
Indicates that incorrect handling may cause hazardous conditions, resulting in death or
severe injury.
Indicates that incorrect handling may cause hazardous conditions, resulting in medium
or slight personal injury or physical damage.
Depending on the circumstances, procedures indicated by
may also cause severe injury.
It is important to follow all precautions for personal safety.
Store this manual in a safe place so that it can be taken out and read whenever necessary. Always forward it to the
end user.
1.DESIGN PRECAUTIONS
WARNING
• Make sure to include the following safety circuits outside the PLC to ensure safe system operation even during
external power supply problems or PLC failure.
Otherwise, malfunctions may cause serious accidents.
1) Above all, the following components should be included: an emergency stop circuit, a protection circuit, an
interlock circuit for opposite movements (such as normal vs. reverse rotation), and an interlock circuit (to prevent
damage to the equipment at the upper and lower positioning limits).
2) Note that when the PLC CPU detects an error, such as a watchdog timer error, during self-diagnosis, all outputs
are turned off. Also, when an error that cannot be detected by the PLC CPU occurs in an input/output control
block, output control may be disabled.
External circuits and mechanisms should be designed to ensure safe machinery operation in such a case.
3) Note that when an error occurs in a relay, triac or transistor output device, the output could be held either on or
off.
For output signals that may lead to serious accidents, external circuits and mechanisms should be designed to
ensure safe machinery operation in such a case.
• Do not bundle the control line together with or lay it close to the main circuit or power line. As a guideline, lay the
control line at least 100mm (3.94”) or more away from the main circuit or power line.
Noise may cause malfunctions.
• Ground the shield wire or shield of the shielded cable at one point on the PLC. However, do not ground them at the
same point as the high-voltage lines.
Noise may cause malfunctions.
• Install module so that excessive force will not be applied to the terminal blocks.
Failure to do so may result in wire damage/breakage or PLC failure.
(1)
Safety Precautions
(Read these precautions before using.)
2.INSTALLATION PRECAUTIONS
WARNING
• Make sure to shut down all phases of the power supply externally before installing.
Failure to do so may cause electric shock or damage to the product.
• Use the product within the generic environment specifications described in PLC main unit manual (Hardware
Edition).
Never use the product in areas with excessive dust, oily smoke, conductive dusts, corrosive gas (salt air, Cl2, H2S,
SO2, or NO2), flammable gas, vibration or impacts, or expose it to high temperature, condensation, or rain and wind.
If the product is used in such conditions, electric shock, fire, malfunctions, deterioration or damage may occur.
• Do not touch the conductive parts of the product directly.
Doing so may cause device failures or malfunctions.
• Install the product securely using a DIN rail or mounting screws.
• Install the product on a flat surface.
If the mounting surface is rough, undue force will be applied to the PC board, thereby causing nonconformities.
• When drilling screw holes or wiring, make sure that cutting and wiring debris do not enter the ventilation slits.
Failure to do so may cause fire, equipment failures or malfunctions.
• Be sure to remove the dust proof sheet from the PLC’s ventilation port when installation work is completed.
Failure to do so may cause fire, equipment failures or malfunctions.
• Connect extension cables securely to their designated connectors.
Loose connections may cause malfunctions.
• Turn off the power to the PLC before attaching or detaching the following devices.
Failure to do so may cause device failures or malfunctions.
-- Peripheral devices, display modules, expansion boards and special adapters
-- I/O extension units/blocks, FX Series terminal block and the special function units/blocks
-- Battery and memory cassette
3.WIRING PRECAUTIONS
WARNING
• Make sure to cut off all phases of the power supply externally before attempting wiring work.
Failure to do so may cause electric shock.
(2)
Safety Precautions
(Read these precautions before using.)
• Connect the AC power supply to the dedicated terminals specified in this manual.
If an AC power supply is connected to a DC input/output terminal or DC power supply terminal, the PLC will burn
out.
• Do not wire vacant terminals externally.
Doing so may damage the product.
• Use class D grounding (grounding resistance of 100Ω or less) with a wire of 2mm2 or thicker on the grounding
terminal of the PLC.
However, do not connect the ground terminal at the same point as a heavy electrical system.
• When drilling screw holes or wiring, make sure cutting or wire debris does not enter the ventilation slits.
Failure to do so may cause fire, equipment failures or malfunctions.
• Make sure to observe the following precautions in order to prevent malfunctions under the influence of noise.
-- Do not bundle the power line or twisted shielded cable together with or lay it close to the main circuit, highvoltage line, or load line.
Otherwise, noise disturbance and/or surge induction are likely to take place. As a guideline, lay the control line at
least 100mm (3.94”) or more away from the main circuit, high-voltage line, or load line.
-- Ground the shield wire or shield of the shielded cable at one point on the PLC. However, do not use common
grounding with heavy electrical systems.
• Make sure to properly wire to the terminal blocks in accordance with the following precautions.
Failure to do so may cause electric shock, equipment failures, a short-circuit, wire breakage, malfunctions, or damage
to the product.
-- The disposal size of the cable end should follow the dimensions described in the manual.
-- Tightening torque should follow the specifications in the manual.
4.STARTUP AND MAINTENANCE PRECAUTIONS
WARNING
• Do not touch any terminal while the PLC’s power is on.
Doing so may cause electric shock or malfunctions.
• Before cleaning or retightening terminals, cut off all phases of the power supply externally.
Failure to do so may cause electric shock.
• Before modifying or disrupting the program in operation or running the PLC, carefully read through this manual and
the associated manuals and ensure the safety of the operation.
An operation error may damage the machinery or cause accidents.
• Do not disassemble or modify the PLC.
Doing so may cause fire, equipment failures, or malfunctions.
For repair, contact your local Mitsubishi Electric distributor.
• Turn off the power to the PLC before connecting or disconnecting any extension cable.
Failure to do so may cause equipment failures or malfunctions.
• Turn off the power to the PLC before attaching or detaching the following devices.
Failure to do so may cause equipment failures or malfunctions.
-- Peripheral devices, display modules, expansion boards and special adapters
-- I/O extension units/blocks, FX Series terminal block and the special function units/blocks
-- Battery and memory cassette
(3)
Safety Precautions
(Read these precautions before using.)
5.DISPOSAL PRECAUTIONS
• Please contact a certified electronic waste disposal company for the environmentally safe recycling and disposal of
your device.
6.TRANSPORTATION PRECAUTIONS
• The PLC is a precision instrument. During transportation, avoid impacts larger than those specified in the general
specifications of the PLC main unit manual.
Failure to do so may cause failures in the PLC.
After transportation, verify the operations of the PLC.
(4)
FX (FX1N, FX1NC) → FX3 series Replacement Guidance
Manual number
JY997D57901
Sub-number
A
Create date
October 2014
Preface
This manual describes the replacement method of MELSEC-F series from FX (FX1N, FX1NC)
series to FX3 series.
The replacement tools for sequence programs are described in the operation procedure of GX
Works2/GX Developer Ver. 8 of the programming software. As for the handling method of the
software, please refer to the Operating Manual of GX Works2/GX Developer Ver. 8.
As for the FX series related manuals, please refer to Appendix B.
This manual is not intended to guarantee the execution of industrial properties and other right, or permit
execution rights. The company is not responsible for problems in the industrial properties and others
arising from the use of the descriptions in this book.
©©2014 MITSUBISHI ELECTRIC CORPORATION
1
Outline Precautions
••
This manual provides information for the use of the FX3 Series Programmable Controllers. The
manual has been written to be used by trained and competent personnel. The definition of such a
person or persons is as follows;
(1) Any engineer who is responsible for the planning, design and construction of automatic
equipment using the product associated with this manual should be of a competent nature,
trained and qualified to the local and national standards required to fulfill that role. These
engineers should be fully aware of all aspects of safety with regards to automated equipment.
(2) Any commissioning or service engineer must be of a competent nature, trained and qualified
to the local and national standards required to fulfill that job. These engineers should also be
trained in the use and maintenance of the completed product. This includes being completely
familiar with all associated documentation for the said product. All maintenance should be
carried out in accordance with established safety practices.
(3) All operators of the completed equipment should be trained to use that product in a safe and
coordinated manner in compliance to established safety practices. The operators should also
be familiar with documentation which is connected with the actual operation of the completed
equipment.
Note:
••
••
••
••
••
••
••
••
The term ‘completed equipment’ refers to a third party constructed device which contains or
uses the product associated with this manual
This product has been manufactured as a general-purpose part for general industries, and has not
been designed or manufactured to be incorporated in a device or system used in purposes related to
human life.
Before using the product for special purposes such as nuclear power, electric power, aerospace,
medicine or passenger movement vehicles, consult with Mitsubishi Electric.
This product has been manufactured under strict quality control. However when installing the
product where major accidents or losses could occur if the product fails, install appropriate backup
or failsafe functions in the system.
When combining this product with other products, please confirm the standard and the code, or
regulations with which the user should follow. Moreover, please confirm the compatibility of this
product to the system, machine, and apparatus with which a user is using.
If in doubt at any stage during the installation of the product, always consult a professional electrical
engineer who is qualified and trained to the local and national standards. If in doubt about the
operation or use, please consult the nearest Mitsubishi Electric distributor.
Since the examples indicated by this manual, technical bulletin, catalog, etc. are used as a reference,
please use it after confirming the function and safety of the equipment and system. Mitsubishi
Electric will accept no responsibility for actual use of the product based on these illustrative
examples.
This manual content, specification etc. may be changed without a notice for improvement.
The information in this manual has been carefully checked and is believed to be accurate; however,
if you have noticed a doubtful point, a doubtful error, etc., please contact the nearest Mitsubishi
Electric distributor.
Trademarks
••
••
••
••
••
2
Microsoft ® and Windows ® are trademarks of Microsoft Corporation of the United States registered
in the United States and other nations.
Ethernet is a trademark of Xerox Corporation (USA).
MODBUS is a registered trademark of Schneider Electric SA.
CiA and CANopen are registered Community Trademarks of CAN in Automation e.V.
Other company names and product names are registered trademarks of the individual companies.
Generic names and abbreviations used in this manual
Generic names and abbreviations used in this manual
Generic name, abbreviation
Description
Programmable controller
FX programmable controller
Generic name of PLCs in FX3S, FX3G, FX3GE, FX3GC, FX3U, FX3UC,
FX2N, FX2NC, FX1N, FX1NC, FX1S, FX2, FX2C, FX1, FX0N, FX0S, FX0 series
FX3 series
Generic name of PLCs in FX3S, FX3G, FX3GE, FX3GC, FX3U, FX3UC series
FX3G series
Generic name of PLCs in FX3G series
FX3GE series
Generic name of PLCs in FX3GE series
FX3GC series
Generic name of PLCs in FX3GC series
FX3U series
Generic name of PLCs in FX3U series
FX3UC series
Generic name of PLCs in FX3UC series
FX2N series
Generic name of PLCs in FX2N series
FX2NC series
Generic name of PLCs in FX2NC series
FX1N series
Generic name of PLCs in FX1N series
FX1NC series
Generic name of PLCs in FX1NC series
FX1S series
Generic name of PLCs in FX1S series
FX2 series
Generic name of PLCs in FX2 series
FX2C series
Generic name of PLCs in FX2C series
FX1 series
Generic name of PLCs in FX1 series
FX0N series
Generic name of PLCs in FX0N series
FX0S series
Generic name of PLCs in FX0S series
FX0 series
Generic name of PLCs in FX0 series
Function expansion board
Communication function expansion
board or communication board
232BD
422BD
485BD
USBBD
Special adapter connection board or
connector conversion board
CNVBD
Generic name of communication function expansion boards
FX3U-232-BD, FX3G-232-BD
FX3U-422-BD, FX3G-422-BD
FX3U-485-BD, FX3G-485-BD
FX3U-USB-BD
Generic name of CNVBD
FX3U-CNV-BD, FX3G-CNV-ADP
Special adapter
Communication special adapter or
communication adapter
232ADP
485ADP
Generic name of communication special adapters
FX3U-232ADP-MB
FX3U-485ADP-MB
Programming tool software
FX-PCS/WIN
Generic name of programming software FX-PCS/WIN
GX Developer
Generic name of programming software GX Developer
GX Works2
Generic name of programming software GX Works2
Handy programming panel
Generic name of FX-30P, FX-20P
3
Table of Contents
Safety Precautions.................................................................................................. (1)
Generic names and abbreviations used in this manual  ............................................3
1. Introduction  ........................................................................................................6
1.1Outline ............................................................................................................................................... 6
1.1.1 Replacement models  ................................................................................................................................... 6
1.1.2 Necessity of renewal  ................................................................................................................................... 6
1.2 Replacement of FX series  ................................................................................................................. 7
1.2.1 Replacement selection  ................................................................................................................................. 7
1.2.2 program conversion  ..................................................................................................................................... 7
2. Replacement of FX1N series  .............................................................................8
2.1Outline ............................................................................................................................................... 8
2.1.1 Cautions  ....................................................................................................................................................... 8
2.2 Replacement procedure  ..................................................................................................................... 9
2.3 Selection of replacement models  .................................................................................................... 10
2.3.1 Recommended replacement models  .......................................................................................................... 10
2.3.2 Cautions about hardware  ........................................................................................................................... 14
2.4 Program conversion  .......................................................................................................................... 18
2.4.1 Cautions for program change  .................................................................................................................... 18
2.4.2 Device comparison  .................................................................................................................................... 21
2.5 Replacement of PLCs  ...................................................................................................................... 23
3. Replacement of FX1NC series  .........................................................................24
3.1Outline ............................................................................................................................................. 24
3.1.1 Cautions  ..................................................................................................................................................... 24
3.2 Replacement procedure  ................................................................................................................... 25
3.3 Selection of replacement models  .................................................................................................... 26
3.3.1 Recommended replacement models  .......................................................................................................... 26
3.3.2 Cautions about hardware  ........................................................................................................................... 28
3.4 Program conversion  .......................................................................................................................... 30
3.4.1 Cautions for program change  .................................................................................................................... 30
3.4.2 Device comparison  .................................................................................................................................... 33
3.5 Replacement of PLCs  ...................................................................................................................... 34
4. Program conversion method  ...........................................................................35
4.1 Preparation for program conversion  ................................................................................................ 35
4.1.1 Program conversion procedure  .................................................................................................................. 35
4.1.2 Programming tool  ...................................................................................................................................... 36
4.2 Conversion of program by using GX Works2  ................................................................................. 38
4.2.1 Preparation for program conversion  .......................................................................................................... 38
4.2.2 Reading of program  ................................................................................................................................... 38
4.2.3 Model change to FX3 series (change of PLC type)  .................................................................................. 40
4.3 Correction of program and checking of operation  .......................................................................... 41
4.3.1 Checking and correction of program  ......................................................................................................... 41
4.3.2 Checking operation  ................................................................................................................................... 41
4
Table of Contents
Appendix A. Models affected by production termination........................................42
Appendix B. Related manuals................................................................................43
Appendix C. Frequently asked questions...............................................................50
Revision history  ......................................................................................................52
5
1. Introduction
1. Introduction
1.1 Outline
Thank you very much for your continued use of Mitsubishi PLCs.
It may be time to renew your PLCs due to aging or deterioration over years of use, discontinued production
of products, or termination of service or repair term.
This manual describes the procedure of replacing your FX (FX1N, FX1NC) series PLCs with FX3 series
PLCs.
1.1.1 Replacement models
To replace FX (FX1N, FX1NC) series PLCs, a system configuration composed of FX3 series models is
recommended.
Recommended replacement models introduced in this manual are general representative models selected
based on the number of inputs and outputs, program capacity, and shapes of input and output terminals
(terminal blocks, connectors, etc.). Depending on actual usage, models other than the recommended ones
may be more suitable.
1.1.2 Necessity of renewal
(1) Our products are composed of very reliable parts including a great number of electronic components.
When all components function normally, optimal functions and performance of the product will be
realized.
However, some parts (electrolytic capacitors, relays, switches and others) have a limited service life.
The length of the service life varies depending on the part, and if used beyond the service life, optimal
operation can not be expected and troubles or failures may occur. Generally, the deterioration of
electronic components depends on the operating environment, and premature deterioration may occur if
used in hot environments, overloaded conditions, or if incorrectly installed or connected.
Deterioration of parts due to aging or environment may shorten the service life of the product, and
periodic renewal becomes necessary.
(2) Systematic and planned preventive maintenance.
Failures are often caused by parts deteriorated due to aging or operating environment.
In equipment whose production is finished, it may take considerable time for recovery from failures.
It is necessary to secure spare parts and perform systematic and planned maintenance and renewal.
6
1. Introduction
1
Investigate
Diagnose
Arrange the selected equipment,
and replace the existing equipment
with the arranged one on the site.
4
Debug
After installing the replacement,
check operation and correct any
problems.
Complete
A
The functions are improved by
using the latest model.
Models affected
by production
termination
Select FX3 series replacement
products based on the number
of inputs and outputs, expansion
requirements, and other properties.
3
Replace
Program
changeover
method
Select replacement
2
Extract the program and then
change the PLC type and make
any necessary modifications.
Replacement of
FX1NC series
Evaluate the relative importance of
each system and take into account
the duration of use, operation
environment, and replacement
priority.
Program conversion
Replacement of
FX1N series
Determine the number of different
PLCs and where they are installed.
Also investigate the programs and
wiring diagrams.
Introduction
Planning of renewal
1.2 Replacement of FX series
Related
manuals
B
1.2.1 Replacement selection
Select FX3 series main units and expansion equipment to replace existing systems.
C
Select replacement
Frequently
asked
questions
FX1N series
Refer to Chapter 2. “Replacement of FX1N series”
FX1NC series
Select replacement
Refer to Chapter 3. “Replacement of FX1NC series”
1.2.2 Program conversion
Conversion of the FX1N, FX1NC series PLC programs to FX3 series can be done using GX Works2 or
GX Developer Ver. 8.
Program conversion
Refer to Chapter 4. “Program conversion method”
7
2. Replacement of FX1N series
2. Replacement of FX1N series
2.1 Outline
This chapter describes the procedure to replace the FX1N series with its successor, the FX3G series.
Replacement is recommended.
2.1.1 Cautions
(1) "Recommended replacement models" lists the most fitting FX3 series product based on specification
comparison. Depending on the operation environment or the system configuration (connection of
expansion equipment), or when the number of inputs and outputs in use is smaller, other products may
be more appropriate than the recommended replacement model.
(2) Recommended replacement models for extension blocks, extension units, special function modules,
expansion boards, and batteries are selected based on compatibility with current FX3 series main units.
(3) Pay close attention to notes marked as "Special remarks". For attributes such as external dimensions,
there can be slight differences between the recommended replacement model and existing product.
Before performing replacement, be sure to review other relevant details such as dimensions, and power
supply requirements.
(4) For instances where there is no recommended replacement model, a message stating "No recommended
replacement model" will be shown. In this case, a FX3 series system may still be able to provide
equivalent operation.
Evaluate the requirements of the application and use a FX3 series system configuration for replacement.
8
2. Replacement of FX1N series
Introduction
2.2
1
Replacement procedure
The replacement procedure is shown below.
FX3G series products are generally recommended as replacements for FX1N series products.
· · · · · · · · · ·
2
2.3
Replacement of
FX1N series
Select replacement
Selection of replacement models
2.3.1 Recommended replacement models
2.3.2 Cautions about hardware
· · · · · · · · · ·
Replacement of
FX1NC series
Program conversion
3
2.4 / 4.1
4
Program conversion
Program
changeover
method
2.4.1 Cautions for program change
2.4.2 Device comparison
4.1.1 Program conversion procedure
4.1.2 Programming tool
· · · · · · · · · ·
A
2.5
Models affected
by production
termination
Replace
Replacement of PLCs
Related
manuals
B
Complete
Frequently
asked
questions
C
9
2. Replacement of FX1N series
2.3 Selection of replacement models
2.3.1 Recommended replacement models
(1) Main unit recommended replacement models
FX3G series recommended replacement models corresponding to the FX1N series are introduced.
Please replace currently used main units with the following recommended models.
 FX1N series and recommended replacement models (main units)
FX1N series
Description
Main unit (100 to
240V AC power
supply)
(sink/source input,
relay output)
Main unit (100 to
240V AC power
supply)
(sink/source input,
transistor source
output)
Main unit (12 to 24V
DC power supply)
(sink/source input,
relay output)
Main unit (12 to 24V
DC power supply)
(sink/source input,
transistor source
output)
Model name
Recommended
replacement model
Model name
FX1N-14MR-ES/UL
FX3G -14MR/ES(-A)
FX1N-24MR-ES/UL
FX3G -24MR/ES(-A)
FX1N-40MR-ES/UL
FX3G -40MR/ES(-A)
FX1N-60MR-ES/UL
FX3G -60MR/ES(-A)
FX1N-14MT-ESS/UL
FX3G -14MT/ESS
FX1N-24MT-ESS/UL
FX3G -24MT/ESS
FX1N-40MT-ESS/UL
FX3G -40MT/ESS
FX1N-60MT-ESS/UL
FX3G -60MT/ESS
FX1N-14MR-DS
FX3G -14MR/DS
FX1N-24MR-DS
FX3G -24MR/DS
FX1N-40MR-DS
FX3G -40MR/DS
FX1N-60MR-DS
FX3G -60MR/DS
FX1N-14MT-DSS
FX3G -14MT/DSS
FX1N-24MT-DSS
FX3G -24MT/DSS
FX1N-40MT-DSS
FX3G -40MT/DSS
FX1N-60MT-DSS
FX3G -60MT/DSS
Special remarks
*1
*1
The supply voltage range of the
FX3G series is 20.4 to 28.8V
DC.
12V DC is not available. *2
*1: The depth is changed from 75 mm (FX1N series) to 86 mm (FX3G series).
*2: The FX1N series used with 12V DC cannot be replaced.
10
2. Replacement of FX1N series
When changing from FX1N to FX3G series main units, the following expansion equipment and option
equipment must be replaced at the same time.
If replacement models with the same performance are not available, please review and consider to redesign the system following the comments included in the "Special remarks" column.
Models connectable to FX1N series
Special adapter
(for RS-232C
communication)
Model name
FX2NC-232ADP
FX3U-232ADP-MB
FX1N-CNV-BD
FX3G -CNV-ADP
FX1N-4EX-BD
FX3G -4EX-BD
FX1N-2EYT-BD
FX3G -2EYT-BD
FX1N-2AD-BD
FX3G -2AD-BD
FX1N-1DA-BD
FX3G -1DA-BD
FX1N-8AV-BD
FX3G -8AV-BD
FX1N-232-BD
FX3G -232-BD
FX1N-422-BD
FX3G -422-BD
FX1N-485-BD
FX3G -485-BD(-RJ)
FX1N-EEPROM-8L
FX1N-5DM
FX3G -EEPROM-32L
FX3G -5DM
Special function block
0N-3A
(analog input and output) FX
Special function block
(ASI master)
FX2N-32ASI-M
Special function unit
(I/O link master)
FX2N-16LNK-M
A
B
C
Frequently
asked
questions
Expansion board
(for special adapter
connection)
Expansion board
(input board)
Expansion board
(output board)
Expansion board
(analog input)
Expansion board
(analog output)
Expansion board
(analog volume)
Expansion board
(RS-232C communication)
Expansion board
(RS-422 communication)
Expansion board
(RS-485 communication)
Memory cassette
Display module
Related
manuals
FX3U-485ADP-MB
4
Models affected
by production
termination
FX2NC-485ADP
The FX3G -CNV-ADP is
needed for connection of the
recommended replacement
model (FX3G series).
The FX3G -CNV-ADP is
needed for connection of the
recommended replacement
model (FX3G series).
Program
changeover
method
Special adapter
(for RS-485
communication)
3
Special remarks
Replacement of
FX1NC series
Description
Recommended
replacement models
connectable to FX3G
Model name
2
Replacement of
FX1N series
 Expansion and option equipment required to be replaced when FX1N series main units are changed
to FX3G series.
Introduction
1
(2) Expansion equipment recommended replacement models
The FX3G -CNV-ADP is needed
for connection of the FX3G
series main unit.
The FX2N-32ASI-M cannot be
connected to the FX3G series.
No replacement model Create
a new system using the
CC-Link and others.
The FX2N-16LNK-M cannot
be connected to the FX3G
No replacement model series.
Create a new system using the
CC-Link and others.
FX3U-3A-ADP
FX0N series expansion units, expansion blocks and special function blocks connectable to the FX1N
series cannot be connected to the FX3G series.
Update the current equipment to proper expansion equipment compatible with the FX3G series.
11
2. Replacement of FX1N series
(3) FX1N expansion equipment usable when the main unit is changed to FX3G series
When main units are changed from FX1N series to FX3G series, the following FX1N expansion
equipment in general can be used.
However, if use is expected to continue for a long period, it is recommended to replace units following
the practices of preventative maintenance.
 Expansion equipment usable when main units are changed from FX1N series to FX3G series
Input/output extension
unit
FX2N-32ER-ES/UL
FX2N-32ET-ESS/UL
FX2N-48ER-ES/UL
FX2N-48ET-ESS/UL
FX2N-48ER-DS
FX2N-48ET-DSS
FX2N-48ER-UA1/UL
FX2N-32ER
FX2N-32ES
FX2N-32ET
FX2N-48ER
FX2N-48ET
FX2N-48ER-D
FX2N-48ET-D
Input/output extension
block
FX2N-8ER-ES/UL
FX2N-8ER
Input extension block
FX2N-8EX-ES/UL
FX2N-16EX-ES/UL
FX2N-8EX-UA1/UL
FX2N-8EX
FX2N-16EX
FX2N-16EX-C
FX2N-16EXL-C
and output
Output extension block Analog input
mix
FX2N-8EYR-ES/UL
FX2N-8EYT-ESS/UL
FX2N-8EYR-S-ES/UL
FX2N-16EYR-ES/UL
FX2N-16EYT-ESS/UL
FX2N-8EYR
FX2N-8EYT
FX2N-8EYT-H
FX2N-16EYR
FX2N-16EYT
FX2N-16EYT-C
FX2N-16EYS
Analog input
FX2N-2AD
FX2N-4AD
FX2N-8AD
Analog output
FX2N-2DA
FX2N-4DA
FX2N-5A
Temperature sensor,
temperature control
FX2N-4AD-TC
FX2N-4AD-PT
FX2N-2LC
Communication/
network
FX2N-32CCL
FX2N-16CCL-M
FX2N-64CL-M
Connector conversion,
extension cable
FX2N-CNV-BC
FX0N-30EC/FX0N-65EC
(4) Expansion equipment newly available with the FX3G series
When main units are changed from FX1N series to FX3G series, the following FX3G series expansion
equipment can be used.
Since FX3 series special adapters do not consume any input or output points, they can be added without
affecting the number of I/O points.
System performance can be increased over that of the existing system by using equipment available for
the FX3G series.
 Expansion equipment for the FX3G series
Analog input
FX3U-4AD-ADP
FX3G -2AD-BD
FX3U-4AD
Analog output
FX3U-4DA-ADP
FX3G -1DA-BD
FX3U-4DA
Analog input and
output mix
FX3U-3A-ADP
Analog volume
FX3G -8AV-BD
Temperature sensor,
temperature control
FX3U-4AD-PT-ADP
FX3U-4AD-PTW-ADP
FX3U-4AD-PNK-ADP
FX3U-4AD-TC-ADP
FX3U-4LC
Display module
FX3G -5DM
Loader function
memory
FX3G -EEPROM-32L
Power source
extension unit
FX3U-1PSU-5V
Communication/
network
FX3G -232-BD
FX3G -422-BD
FX3G -485-BD(-RJ)
FX3U-232ADP-MB
Input/output expansion FX3U-485ADP-MB
board
FX3U-64CCL
FX3G -4EX-BD
FX3U-16CCL-M
FX3G -2EYT-BD
FX3U-ENET-ADP
FX3U-ENET
FX3U-32DP
FX3U-CAN
FX3U-J1939
The FX3G-CNV-ADP is needed for connection of a special adapter.
12
2. Replacement of FX1N series
Introduction
1
(5) Battery
The batteries used in the FX1N series and FX3G series main units are different.
Select batteries based on the main unit.
FX1N-BAT
FX3U-32BL
2
Replacement of
FX1N series
Battery for FX1N series
Battery for FX3G series
(6) Use of the MELSEC-F series Selection Tool
By using the MELSEC-F series Selection Tool, it is possible to confirm whether or not a system
configuration containing FX1N series expansion equipment is valid for a FX3G series main unit.
Replacement of
FX1NC series
3
Program
changeover
method
4
Models affected
by production
termination
A
Related
manuals
B
Frequently
asked
questions
C
13
2. Replacement of FX1N series
2.3.2 Cautions about hardware
zz Comparison of FX1N series and FX3G series and cautions for replacement
This is a list of hardware cautions. When performing replacement, please refer to the manual of each
model and confirm details list here.
 Hardware differences of FX1N series and FX3G series, and cautions
No.
Difference
FX1N series
FX3G series
Caution
1
Depth
75 mm
86 mm
The depth is different between
the FX1N series and the FX3G
series.
2
Optional battery and
mounting position
Input hardware filter
(when digital filter is
zero)
- High-speed counter
- Input interrupt
function
- Pulse catch function
FX1N-BAT
FX3U-32BL
Type name (model) is different.
X0, X1, X3, X4 : 10μs
X2, X5, X6, X7 : 50μs
Noise, not detected in FX1N,
may affect input of FX3G.
If necessary, implement a noise
countermeasure external to the
main unit.
3
X0, X1 : 10μs
X2 to X7 : 50μs
FX0N series expansion
unit and block
Usable
Not usable
5
Terminal resistance of
485-BD, 485ADP
Packaged together
with the BD or
ADP, and to be
selected and
mounted.
Update the current equipment
to proper expansion equipment
compatible with the FX3G
series.
Built into the BD
or ADP, selectable
using a switch.
In the communication
equipment for the FX3G series,
the resistance value can be
selected using a built-in switch.
6
Wire size of 485-BD,
485ADP
AWG26 to 16
AWG22 to 20
4
7
8
Rated voltage in power
specification of DC
12 to 24V DC
power type
[Configuration
when the special
Configuration when the communication
special communication adapter is
adapter is connected
connected]
FX1N-CNV-BD+
FX2NC-***ADP
24V DC
[Configuration
when the special
communication
adapter is
connected]
FX3G -CNV-ADP+
FX3U-***ADP
Availability of
FX0N-3A
Usable
Not usable
(FX3U-3A-ADP is
usable).
of
10 Availability
FX-USB-AW
Usable
Not necessary
(USB Mini-B port
is built in).
9
14
Item
Wire size is different. A large
wire size may not be usable in
FX3G.
The rated voltage is different
between the FX1N series and the
FX3G series.
The configuration at the time
of connection is different
because the shape and mounting
position of the special adapter
connecting equipment and the
special communication adapter
are different.
The FX3G -CNV-ADP is needed
to connect an adapter to the
main unit of the FX3G series.
Program modifications are also
needed.
When connecting the FX3G series
to the personal computer via the
USB, connect it to the built-in
USB port with a communication
cable such as GT09-C30USB-5P.
2. Replacement of FX1N series
1
Introduction
Fig. 1. Outline drawing.
The FX1N series and FX3G series main units have slightly different dimensions.
Take into account any differences when performing replacement.
Differences • Depth is different by 11mm.
Replacement of
FX1N series
2
Outer coat color: Munsell 0.08GY/7.64/0.81
Unit: mm
Type name
90
Mass (kg)
90
0.45
FX1N-24M
90
0.45
FX1N-40M
130
0.65
FX1N-60M
175
0.8
Depth 75
Outer coat color: Munsell 0.08GY/7.64/0.81
Unit: mm
Top cover: Munsell N1.5
90
Type name
Depth 86
Mass (kg)
90
0.50
FX3G-24M
90
0.55
FX3G-40M
130
0.70
FX3G-60M
175
0.85
B
Related
manuals
2-φ4.5
mounting hole
W
W (mm)
FX3G-14M
A
Models affected
by production
termination
82 (Pitch of mounting hole)
 FX3G series main unit
W-8 (Pitch of mounting hole)
4
Program
changeover
method
2-φ4.5
mounting hole
W-8 (Pitch of mounting hole)
W
W (mm)
FX1N-14M
3
Replacement of
FX1NC series
82 (Pitch of mounting hole)
 FX1N series main unit
8
Frequently
asked
questions
C
Fig. 2. Wiring diagram of S/S terminal in FX3G series.
• Input wiring example of AC power supply type
Sink input wiring
S/S
L
N
0V
24V
X1
X0
Source input wiring
X3
X2
• Input wiring example of DC power supply type
S/S
L
N
0V
24V
X1
X0
Sink input wiring
Source input wiring
X3
X2
*
*
*
*
* : Do not connect with [•] terminals.
15
2. Replacement of FX1N series
Table 1. Cable size of European type terminal connectors
For connection with RS-485 communication equipment, use a twisted pair cable with shielding.
Conforming wire size and tightening torque are as follows.
Wire size
of one-wire
connection
FX1N-485-BD
Wire size
of two-wire
connection
FX2NC-485ADP
AWG26 to AWG16
AWG26 to
AWG26 to
AWG16
AWG20
FX3G -485-BD
FX3U-485ADP-MB
AWG22 to
AWG20
AWG22
Wire ferrule
with insulation
sleeve
(wire size)
Not usable
0.6N·m
Insulation
sheath
stripping
length*
6mm
Not usable
0.4 to 0.5N·m
8mm
Usable
(AWG22 to
AWG20)
0.22 to 0.25N·m
9mm
Tightening
torque
*:* Insulation sheath stripping length shows the dimension when connecting the wire to the terminal
directly.
For details, please refer to the FX Series User’s Manual (Data Communication Edition) JY997D16901.
16
2. Replacement of FX1N series
Introduction
1
2.4 Program conversion
2.4.1 Cautions for program change
 Operational difference and cautions about program and system
Communication
1 AS-i system
3 Baud rate in parallel link
Link time
in parallel
link
5
resistance of
6 Terminal
485-BD and 485ADP
Positioning instruction
11 Acceleration/deceleration
time
115,200bps
70ms
+ master station operation
period (ms)
+ slave station operation
period (ms)
20ms
+ master station operation
period (ms)
+ slave station operation
period (ms)
15ms
+ master station operation
period (ms)
+ slave station operation
period (ms)
5ms
+ master station operation
period (ms)
+ slave station operation
period (ms)
Supplied as accessories
Built in the communication
unit
Since the link time becomes
shorter, check again the
update timing of link
devices.
In the FX3G series, the
terminal resistance is built
in the communication unit.
Select the resistance value
using a selection switch.
D8140, D8141
D8340, D8341
D8142, D8143
D8350, D8351
D8145
D8342(Y000)
Change allocation to the
D8352(Y001)
corresponding device.
D8343, D8344(Y000)
D8353, D8354(Y001)
Acceleration time
D8348(Y000), D8358(Y001)
Deceleration time
D8349(Y000), D8359(Y001)
D8146, D8147
D8148
A
B
C
Frequently
asked
questions
Positioning
Positioning instruction
7 Current value for output
Y000
Positioning instruction
8 Current value for output
Y001
Positioning
9 Bias speed instruction
instruction
10 Positioning
Maximum speed
19,200bps
4
Related
manuals
High-speed
parallel link
mode
Incompatible
Models affected
by production
termination
4
Ordinary
parallel link
mode
Compatible
The FX2N-32ASI-M and
the FX2N-16LNK-M cannot
be connected to the FX3G
series. Construct a new
system.
Since the communication
speed becomes higher,
communication may be
affected by noise.
Program
changeover
method
2 MELSEC-I/O LINK
3
Caution
Replacement of
FX1NC series
Operational difference
FX3G series
FX1N series
Item
2
Replacement of
FX1N series
zz Operational difference of FX1N series and FX3G series
The FX3G series can use the same instructions used in the FX1N series, but the following operations are
different. Depending on the hardware configuration or program contents, check the corresponding items
by correcting or replacing the sequence program or checking operations.
17
2. Replacement of FX1N series
Operational difference
Caution
FX3G series
FX1N series
Y004
Y004 can be changed to
Positioning
instruction
another Y device specified by
12 Clear signal for pulse Y000 Y002
D8464 while M8464 (Clear
signal device designation
function enable flag) is ON. Change allocation to the
corresponding device.
Y005
Y005 can be changed to
instruction
another Y device specified by
13 Positioning
Clear signal for pulse Y001 Y003
D8465 while M8465 (Clear
signal device designation
function enable flag) is ON.
Basic and applied instructions
If the destination of a jump
If the destination of
or call is not available, a
In the FX3G series, error
a jump or call is not
syntax error occurs.
detection before RUN is
Pointer
designation
in
CJ
available,
an
operation
However,
if
the
pointer
is
implemented.
14 and CALL instructions
error occurs when the CJ indexed, an operation error
Check the program, and
or CALL instruction is
occurs when the CJ or CALL correct it to avoid errors.
executed.
instruction is executed in the
same way as the FX1N series.
The number of occupied
Occupied
points
for
S3
of
points is increased. Confirm
S3 occupies 25 points.
S3 occupies 29 points.
15 the PID instruction
devices are allocated
correctly.
The ZRST instruction resets
not only the state of the
The ZRST instruction
device, but also
resets only the state of the designated
the drive contact for
resets
the
previous
status for Change
designated device.
the
PLS
instruction to the
the PLS or PLF instructions. LDP instruction,
When the ZRST
or add the
When
the
ZRST
instruction
instruction and PLS
MEP
instruction
between
and PLS instruction
instruction designate
the drive contact and the
designate the same device
Combined
operation
of
the
the
same
device
and
the
instruction.
16 ZRST and PLS instructions ZRST instruction has been and the ZRST instruction has PLS
Refer to 7.12 Cautions
been
programmed
previously,
programmed previously,
on the PLS and PLF
PLS instruction is
the PLS instruction is not the
instructions in the FX3G/
performed
again
and
sets
to
FX3U/FX3GC/FX3UC Series
performed again unless the ON the designated device
Programming Manual for
drive contact is changed
after
the
ZRST
instruction
is
the details.
from OFF to ON.
executed if the drive contact
for the PLS instruction
remains ON.
In the FX1N series, to
If the ZRST instruction
If the ZRST instruction
clear the coil of a timer or
designating a timer or
designating a timer or
counter, an RST instruction
Clear coil by ZRST
counter as the operand is counter as the operand is
was needed, but in the FX3G
17 instruction
executed, the coil of these executed, the coil of these
series, batch resetting is
timers or counters are not timers or counters are also
possible using the ZRST
cleared.
cleared.
instruction.
The ZRST instruction
resets the designated
The ZRST instruction resets
counter value, but does
not only the designated
not reset the coil (in the
counter value, but also resets Change the drive contact for
previous status) for the
the coil (in the previous
the counter OUT instruction
Combined operation of the counter.
status) for the counter.
Even if the ZRST
the LDP instruction, or
ZRST instruction and a
When the ZRST instruction to
instruction which
add the MEP instruction
18 counter*.
which
designates
a
same
* : Excluding high-speed
designates a same device device as the counter OUT
between the drive contact
counter
as the counter OUT
and the counter OUT
instruction
is
executed,
the
instruction is programmed, counter value becomes 1
instruction.
the counter does not
in
the
next
scan
if
the
drive
start counting unless the
contact remains ON.
contact is changed from
OFF to ON.
Item
18
2. Replacement of FX1N series
Caution
In the FX3G series, the error
detection in instruction
execution is implemented.
Please check the program,
and change the device
allocation so as to avoid
errors.
Special devices
M8004 turns ON when either
of M8060, M8061, M8063,
M8064, M8065, M8066 or
M8067 is ON.
M8004 turns ON when either When M8004 is used to
of M8060, M8061, M8064, check errors in M8063, add
M8065, M8066 or M8067
the check for M8063.
is ON.
When power is turned
OFF
When changed from RUN to Note that the clear timing is
STOP
changed.
Special device D is also
initialized.
When power is turned
OFF
When power is turned
OFF
When changed from RUN to
STOP
When changed from RUN to
STOP
Clear timing of M8063
25 and D8063 (Serial
communication error)
When changed from STOP When power is turned OFF
to RUN
(
)
(
)
Note that available devices
are changed.
Note that available devices
are changed.
for analog special
27 Devices
expansion
Any devices in the
program (FX0N-3A)
timing of M8161
28 Clear
(8-bit processing mode) Clear timing of special
29 auxiliary relays D8122 and
D8123
When power is turned
OFF
When changed from STOP When changed from RUN to Note that the clear timing is
to RUN
STOP
changed.
data register
30 Special
D8158
D8158 is provided for the
display module.
data register
31 Special
D8159
D8159 designates the M
device for the display
module, or functions as
the flag to detect voltage
drop in the battery
FX1N-BAT.
D8158 latches the inverter
communication error
occurrence step (ch 2).
* D8300 is provided as
a device for the display
module.
Not usable
* D8301 is provided as the
M device for the display
module.
Voltage drop in the battery
can be directly detected in
M8005 and M8006.
If S0 to S999 are ON and
M8047 is enabled.
If S0 to S899 and S1000 to
S4095 are ON when M8047
is enabled.
auxiliary relay
32 Special
M8046
Note that the clear timing is
changed.
Since the device function is
changed, take proper action.
Since the device function is
changed, take proper action.
Since the object device
range differs, add a program
for initializing S1000 to
S4095 using the RST or
ZRST instruction.
19
A
B
C
Frequently
asked
questions
M8260 to M8279
D8260 to D8279
FX3G -1DA-BD
FX3G -2AD-BD
M8280 to M8299
D8280 to D8299
(FX3U-3A-ADP)
When changed from RUN to
STOP
Note that the clear timing is
changed.
Note that the clear timing is
changed.
Not cleared when changed
from STOP to RUN; when
necessary to clear, add an
initializing program using
the RST command.
Related
manuals
M8112 to M8114
Devices for analog function D8112 to D8114
26 expansion board
FX1N-1DA-BD
FX1N-2AD-BD
Note that cleared devices
are changed.
Models affected
by production
termination
Special device D is not
initialized.
4
Program
changeover
method
Clear timing of M8024
21 (BMOV direction
designation)
Clear the devices M8031
22 (Non-latched memory all
clear) and M8032 (Latched
memory all clear).
Clear
timing of M8049
23 (Annunciator enable)
24 Clear timing of M8050 to
M8059 (Interrupt disable)
3
Replacement of
FX1NC series
Special auxiliary relay
20 M8004
Error detection
2
Replacement of
FX1N series
19 PRUN instruction
Operational difference
FX3G series
FX1N series
If M devices are
If M devices are designated
designated in S· and D·,
S· and D·, and the number
and the number of devices in
of
devices necessary for
necessary for operation
operation
exceeds the range
exceeds the range of
of
M
devices,
an operation
M devices, it is not an
error
(6706)
occurs,
and the
error, but the arithmetic
arithmetic
operation
is not
operation is conducted
conducted.
within the possible range.
Introduction
Item
1
2. Replacement of FX1N series
Item
data register
33 Special
D8040 to D8047
20
Operational difference
FX3G series
FX1N series
D8040 to D8047 store up
to 8 state numbers in the
ON state among S0 to
S999.
D8040 to D8047 store up to
8 state numbers in the ON
state among S0 to S899 and
S1000 to S4095.
Caution
Since the object device
range differs, add a program
for initializing S1000 to
S4095 using the RST or
ZRST instruction.
2. Replacement of FX1N series
Introduction
1
2.4.2 Device comparison
zz Comparison of FX1N series and FX3G series devices
The devices used in FX1N series can be used in the FX3G series including special devices.
The following table also shows devices implemented in the FX3G series.
 Device comparison table (the shaded cells indicates difference in specification).
Device
118 points
872 points
General use
—
—
100ms
T0 to T199
200 points
10ms
1ms
T200 toT245
—
T246 to T249
(Capacitor keep)
T250 to T255
(Capacitor keep)
VR1: D8030,
VR2: D8031
46 points
—
M0 to M383
M384 to M511
M512 to M1535
General use
—
M Auxiliary relay
S State relay
T Timer
(on-delay)
Special use
For initial state use
(EEPROM keep)
EEPROM keep
Capacitor keep
1ms retentive type
100ms retentive type
A Analog volume
C
High speed
counter
(EEPROM
keep)
6 points
2 points
10 points
S10 to S999
—
S1000 to S4095
(They can be set to
“latched” when the
optional battery is
mounted).
T0 to T199
(T192 to T199 for
routine)
T200 to T245
T256 to T319
T246 to T249
(EEPROM keep)
T250 to T255
(EEPROM keep)
VR1: D8030,
VR2: D8031
990 points
—
3,096 points
200 points
8 points
46 points
64 points
4 points
6 points
2 points
C0 to C15
16 points
C0 to C15
16 points
C16 to C31
16 points
C16 to C199
184 points
C32 to C199
168 points
—
—
C200 to C219
20 points
C200 to C219
20 points
C220 to C234
(Capacitor keep)
15 points
C220 to C234
(EEPROM keep)
15 points
C235 to C255
60kHz 2 points
+10kHz 4 points
C246 to C250
60kHz 1 points or
10kHz 2 points
C251 to C255
30kHz 1 points
or 5kHz 2 points
6 points
2 points
2 points
C235 to C255
60kHz 4 points
+10kHz 2 points
C246 to C250
60kHz 2 points
or 10kHz 2 points
C251 to C255
30kHz 2 points
+ 5kHz 1 points
6 points
2 points
3 points
21
4
A
B
C
Frequently
asked
questions
Counter
General up counter
(16-bit)
General up counter
(16-bit) EEPROM keep
General up counter
(16-bit) Capacitor keep
General bi-directional
counter
(32-bit) up/down
General bi-directional
counter
(32-bit) up/down
1-phase 1-count input
bi-directional
(32-bit) [variable]
1-phase 2-count input
bi-directional
(32-bit) [variable]
2-phase 2-count input
bi-directional
(32-bit) [variable]
4 points
S0 to S9
3
Related
manuals
S10 to S127
S128 to S999
General use
EEPROM keep
Capacitor keep
Models affected
by production
termination
10 points
Number
Program
changeover
method
S0 to S9
Use
Replacement of
FX1NC series
M8000 to M8255
FX3G series
No. of
No. of
Number
points
points
384points M0 to M383
384 points
128 points M384 to M1535
1,152 points
1,024 points —
—
M1536 to M7679
(They can be set to
—
“latched” when the
6,144 points
optional battery is
mounted).
256 points M8000 to M8511
512 points
Division
FX1N series
Replacement of
FX1N series
2
2. Replacement of FX1N series
Device
FX3G series
No.
of
No. of
Division
Use
Number
Number
points
points
General use (16-bit)
D0 to D127
128 points D0 to D127
128 points
EEPROM keep (16-bit) D128 to D255
128 points D128 to D1099
972 points
Capacitor keep (16-bit) D256 to D7999
7,744 points —
—
D1100 to D7999
(They can be set to
General use (16-bit)
—
—
“latched” when the
6,900 points
optional battery is
mounted).
D1000 to D7999
D1000 to D7999
(They can be set
(They can be set
as file registers
as file registers
File register EEPROM beginning with D1000 MAX.7,000 beginning with D1000 MAX. 7,000
keep
in increments of 500 points
in increments of 500 points
points by a parameter
points by a parameter
Data register
in the program area
in the program area
D (32-bit used in
(EEPROM)).
(EEPROM)).
a pair)
Special use (16-bit)
D8000 to D8255
256 points D8000 to D8511
512 points
Index (16-bit)
V0 to V7, Z0 to Z7
16 points V0 to V7, Z0 to Z7
16 points
R0 to R23999
(They can be set to
Extension register
24,000
—
—
“latched” when the
(16-bit)
points
optional battery is
mounted).
ER0 to ER23999
They are stored in
Extension file register
the EEPROM built
24,000
—
—
(16-bit)
in the main unit or in points
an attached memory
cassette.
For JUMP, CALL branch P0 to P127
128 points P0 to P2047
2,048 points
P Pointer
For input interrupt
I0 ☐☐ to I5 ☐☐
6 points
I0 ☐☐ to I5 ☐☐
6 points
For timer interrupt
—
—
I6 ☐☐ to I8 ☐☐
3 points
22
FX1N series
2. Replacement of FX1N series
Introduction
1
2.5 Replacement of PLCs
The following includes main points of caution when replacing main units and expansion equipment.
For more details on each item, please refer to the reference page of this manual, and the hardware and
programming manuals of the PLCs and related documents.
Item
Input and output wiring change
Special adapter
Expansion to the main unit
Checking cable size for wiring of
FX1N-485-BD or FX2NC-485ADP
Handling of terminal resistance of
FX1N-485-BD or FX2NC-485ADP
Other expansion Wiring to each unit and block
equipment
Operation and test of sequence program
Section
2.3
4
A
Section
2.4
Models affected
by production
termination
Operation
confirmation
3
Program
changeover
method
RS-485
communication
expansion
equipment
Wiring change required for terminal
block connections.
The FX3G -CNV-ADP is needed to
connect a special adapter to the FX3G
series main unit.
Make sure FX3G RS-485 series
communication equipment conforms
to the corresponding wire size. If it
does not conform, change the wire
size.
FX3G RS-485 series communication
equipment incorporates terminal
resistance. Select the resistance value
by using the built-in selection switch.
Re-wiring is needed for terminal block
type equipment.
Operate the replacement sequence
program and hardware equipment,
check and adjust the equipment
function and operation timing. Note
the difference in function mentioned
in the reference page, and make sure
the equipment operates in conformity
with the designed specification.
Reference
page
Replacement of
FX1NC series
Main unit
Measures and cautions
Replacement of
FX1N series
Applicable
equipment
2
Related
manuals
B
Frequently
asked
questions
C
23
3.Replacement of FX1NC series
3. Replacement of FX1NC series
3.1 Outline
This chapter describes the procedure to replace the FX1NC series with its successor, the FX3GC series.
Replacement is recommended.
3.1.1 Cautions
(1) “Recommended replacement models” lists the most fitting FX3 series product based on specification
comparison. Depending on operation environment or the system configuration (connection status of
expansion equipment), or when the number of inputs and outputs in use is smaller, other products may
be more appropriate than the recommended replacement model.
(2) Recommended replacement models for extension blocks and others are selected based on the
compatibility with the FX3 series main units.
(3) Pay close attention to notes marked as “Special remarks.” For attributes such as external dimensions,
there can be slight differences between the recommended replacement model and existing product.
Before performing replacement, be sure to review other relevant details such as dimensions, and power
supply requirements.
(4) For instances where there is no recommended replacement model, a message stating “No recommended
replacement model” will be shown. In this case, a FX3 series system may still be able to provide
equivalent operation.
Evaluate the requirements of the application and use a FX3 series system configuration for replacement.
24
3.Replacement of FX1NC series
Introduction
3.2
1
Replacement procedure
The replacement procedure is shown below.
FX3GC series products are generally recommended as replacements for FX1NC series products.
· · · · · · · · · ·
2
3.3
Replacement of
FX1N series
Select replacement
Selection of replacement models
3.3.1 Recommended replacement models
3.3.2 Cautions about hardware
· · · · · · · · · ·
Replacement of
FX1NC series
Program conversion
3
3.4 / 4.1
4
Program conversion
Program
changeover
method
3.4.1 Cautions for program change
3.4.2 Device comparison
4.1.1 Program conversion procedure
4.1.2 Programming tool
· · · · · · · · · ·
A
3.5
Models affected
by production
termination
Replace
Replacement of PLCs
Related
manuals
B
Complete
Frequently
asked
questions
C
25
3.Replacement of FX1NC series
3.3 Selection of replacement models
3.3.1 Recommended replacement models
(1) Main unit recommended replacement models
FX3GC recommended replacement models corresponding to the FX1NC series are introduced.
Please replace currently used main units with the following recommended models.
 FX1NC series and recommended replacement models (main units)
FX1NC series
Description
Model name
Main unit
(24V DC power supply)
(sink input,
transistor sink output)
Recommended
replacement model
Model name
FX1NC-16MT
FX3GC-32MT/D
FX1NC-32MT
FX3GC-32MT/D
Special remarks
(2) Expansion equipment recommended replacement models
When changing from FX1NC to FX3GC main units, the following expansion equipment and option
equipment must be replaced at the same time.
If replacement models with the same performance are not available, please review and consider to redesign the system following the comments included in the “Special remarks” column.
 List of expansion equipment and option equipment required to be replaced when FX1NC series main
units are changed to FX3GC series.
Models connectable to FX1NC series
Description
Special function block
(for Analog input and
output mix)
Special adapter
(for RS-232C
communication)
Special adapter
(for RS-485
communication)
26
Model name
Recommended
replacement models
connectable to FX3GC
Model name
FX0N-3A
FX3U-3A-ADP
FX2NC-232ADP
FX3U-232ADP-MB
FX2NC-485ADP
FX3U-485ADP-MB
Special function block
(ASI master)
FX2N-32ASI-M
No replacement model
Special function unit
(I/O link master)
FX2N-16LNK-M
No replacement model
Special remarks
The FX2N-32ASI-M
cannot be connected to
the FX3GC series.
Create a new system
using the CC-Link and
others.
The FX2N-16LNK-M
cannot be connected to
the FX3GC series.
Create a new system
using the CC-Link and
others.
3.Replacement of FX1NC series
Input/output
extension unit
FX2NC-64ET
FX2N-8ER
Communication/network
FX2N-32CCL
FX2N-16CCL-M
FX2N-64CL-M
Connector conversion,
extension cable
FX2NC-CNV-IF
FX2N-CNV-BC
FX0N-30EC / FX0N-65EC
Communication/network
FX3U-232ADP-MB
FX3U-485ADP-MB
FX3U-16CCL-M
FX3U-64CCL
FX3U-ENET-ADP
FX3U-ENET
FX3U-32DP
FX3U-CAN
FX3U-J1939
For connection of FX3U series expansion blocks, a FX2NC-CNV-IF or FX3UC-1PS-5V is needed.
(5) Battery
In the FX3GC series, the battery FX3U-32BL for the FX3U series is available as an option.
(6) Use of the MELSEC-F series selection tool
By using the MELSEC-F series Selection Tool, it is possible to confirm whether or not a system
configuration containing FX1NC series expansion equipment is valid for a FX3GC series main unit.
27
C
Frequently
asked
questions
Expansion equipment for the FX3GC series
B
Related
manuals
When main units are changed from FX1NC series to FX3GC series, the following FX3 series expansion
equipment can be used.
Since FX3 series special adapters do not consume any inputs or output points, they can be added
without affecting the number of I/O points.
System performance can be increased over that of the existing system by using equipment available for
the FX3GC series.
Models affected
by production
termination
(4) Expansion equipment newly available with the FX3GC series
Temperature sensor,
temperature control
FX3U-4AD-PT-ADP
FX3U-4AD-PTW-ADP
FX3U-4AD-PNK-ADP
FX3U-4AD-TC-ADP
FX3U-4LC
Power supply extension unit
FX3UC-1PS-5V
4
A
For connection of FX2N series expansion blocks, a FX2NC-CNV-IF or FX3UC-1PS-5V is needed.
Analog input
FX3UC-4AD
FX3U-4AD-ADP
FX3U-4AD
Analog output
FX3U-4DA-ADP
FX3U-4DA
Analog input and output
FX3U-3A-ADP
3
Program
changeover
method
Analog input
FX2N-2AD
FX2N-4AD
FX2N-8AD
Analog output
FX2N-2DA
FX2N-4DA
Analog input and output
mix
FX2N-5A
Temperature sensor,
temperature control
FX2N-4AD-TC
FX2N-4AD-PT
FX2N-2LC
Replacement of
FX1NC series
Input extension
block
FX2NC-16EX-DS
FX2NC-16EX-T-DS
FX2NC-32EX-DS
FX2N-8EX-ES/UL
FX2N-8EX-UA1/UL
FX2N-16EX-ES/UL
FX2N-16EX-C
FX2N-16EXL-C
Output extension
block
FX2NC-16EYT-DSS
FX2NC-16EYR-T-DS
FX2NC-32EYT-DSS
FX2N-8EYR-ES/UL
FX2N-8EYT-ESS/UL
FX2N-8EYT-H
FX2N-8EYR-S-ES/UL
FX2N-16EYR-ES/UL
FX2N-16EYT-ESS/UL
FX2N-16EYT-C
FX2N-16EYS
2
Replacement of
FX1N series
 Expansion equipment usable when main units are changed from FX1NC series to FX3GC series
1
Introduction
(3) FX1NC expansion equipment usable when the main unit is changed to FX3GC series
When main units are changed from FX1NC series to FX3GC series, the following FX1NC expansion
equipment in general can be used.
However, if use is expected to continue for a long period, it is recommended to replace units following
the practices of preventative maintenance.
3.Replacement of FX1NC series
3.3.2 Cautions about hardware
zz Comparison of FX1NC series and FX3GC series and cautions for replacement
This is a list of hardware cautions. When performing replacement, please refer to the manual of each
model and confirm details there.
 Hardware differences of FX1NC series and FX3GC series, and cautions
No.
28
Item
Difference
FX1NC series
FX3GC series
Caution
35 mm
34 mm
2
Input hardware filter
(when digital filter is
zero)
- High-speed counter
- Input interrupt
function
- Pulse catch function
The width is different between
the FX1NC series and the FX3GC
series.
X0, X1: 10μs
X2 to X7: 50μs
X0, X1, X3, X4:
10μs
X2, X5, X6, X7:
50μs
Noise, not detected in FX1NC,
may affect input of FX3GC.
If necessary, implement a noise
countermeasure external to the
main unit.
3
FX0N series expansion
block
Usable
Not usable
4
Terminal resistance of
485ADP
Packaged together
with the ADP, and
to be selected and
mounted.
Built into the ADP,
selectable using a
switch.
5
Wire size of 485ADP
AWG26 to 16
AWG22 to 20
6
[Configuration
the special
Width when the special when
communication
communication adapter adapter is
is connected
connected]
FX2NC-***ADP
7
Availability of
FX0N-3A
1
Width
Usable
[Configuration
when the special
communication
adapter is
connected]
FX3U-***ADP
Not usable
(FX3U-3A-ADP is
usable).
8
Availability of
FX-USB-AW
Usable
Not necessary
(USB Mini-B port
is built in).
9
Maximum resistance
load
0.1 A/1 point
0.1 A/1 point
(Y0 and Y1 are 0.3
A/1 point).
Update the current equipment
to proper expansion equipment
compatible with the FX3GC
series.
In the communication
equipment for the FX3GC series,
the resistance value can be
selected using a built-in switch.
Wire size is different. A large
wire size may not be usable in
FX3GC.
The width is different because
the shape and mounting
position of the special adapter
connecting equipment and the
special communication adapter
are different.
Program modification is
required.
When connecting the FX3GC
series to the personal computer
via the USB, connect it to
the built-in USB port with a
communication cable such as
GT09-C30USB-5P.
The maximum resistance load
of Y0 and Y1 is different.
3.Replacement of FX1NC series
1
Introduction
Table 1. Cable size European terminal type connectors
For connection with RS-485 communication equipment, use a twisted pair cable with shielding.
Conforming wire size and tightening torque are as follows.
Tightening
torque
Insulation
sheath
stripping
length*
FX2NC-485ADP
AWG26 to
AWG16
AWG26 to
AWG20
Not usable
0.4 to 0.5N·m
8mm
FX3U-485ADP-MB
AWG22 to
AWG20
AWG22
Usable
(AWG22 to
AWG20)
0.22 to 0.25N·m
9mm
3
*:Insulation
*
sheath stripping length shows the dimension when connecting the wire to the terminal
directly.
4
Program
changeover
method
For details, please refer to the FX Series User’s Manual (Data communication edition)JY997D13301.
Replacement of
FX1NC series
Wire size
of two-wire
connection
2
Replacement of
FX1N series
Wire size
of one-wire
connection
Wire ferrule
with insulation
sleeve
(wire size)
A
Fig. 1. Outline drawing.
Models affected
by production
termination
The overall dimensions of the FX1NC is almost identical, but the FX3GC has a 1mm shorter width,
depending on model.
 FX1NC series main unit
Outer coat color: Munsell 0.08GY/7.64/0.81
Unit: mm
Type name
Mass(kg)
35
0.20
FX1NC-32MT
35
0.20
Only 35 mm wide DIN rail can be mounted.
[Accessory]
• FX2NC-100MPCB type power cable (1m)
• FX2NC-100BPCB type power cable (1m)
(Power source cable)
FX3GC series main unit
Outer coat color: Munsell 0.08GY/7.64/0.81
Unit: mm
Type name
FX3GC-32MT/D, DSS
W (mm)
Mass (kg)
34
0.20
Only 35 mm wide DIN rail can be mounted.
[Accessory]
• FX3GC-32MT/D
FX2NC-100MPCB type power cable(1m)
FX2NC-100BPCB type power cable(1m)
• FX3GC-32MT/DSS
FX2NC-100MPCB type power cable(1m)
(Power source cable)
29
C
Frequently
asked
questions
W (mm)
FX1NC-16MT
Related
manuals
B
3.Replacement of FX1NC series
3.4 Program conversion
3.4.1 Cautions for program change
zz Operational difference of FX1NC series and FX3GC series
The FX3GC series can use the same instructions used in the FX1NC series, but the following operations
are different. Depending on the hardware configuration or program contents, check the corresponding
items by correcting or replacing the sequence program or checking operations.
 Function difference and cautions about program and system
Operational difference
FX3GC series
FX1NC series
Item
Communication
1 AS-i system
2 MELSEC-I/O LINK
3 Baud rate in parallel link
4
Link time
in parallel
link
5
Ordinary
parallel link
mode
High-speed
parallel link
mode
resistance of
6 Terminal
485-BD and 485ADP
Positioning
Positioning instruction Current
7 value for output Y000
Positioning instruction Current
8 value for output Y001
instruction Bias
9 Positioning
speed
10 Positioning instruction
Maximum speed
Positioning instruction
11 Acceleration/deceleration
time
The FX2N-32ASI-M and
the FX2N-16LNK-M cannot
be connected to the FX3GC
series. Construct a new
system.
Since the communication
speed becomes higher,
communication may be
affected by noise.
Compatible
Incompatible
19,200 bps
115,200bps
70ms
+ master station operation
period (ms)
+ slave station operation
period (ms)
20ms
+ master station operation
period (ms)
+ slave station operation
period (ms)
15ms
+ master station operation
period (ms)
+ slave station operation
period (ms)
5ms
+ master station operation
period (ms)
+ slave station operation
period (ms)
Supplied as accessories
Built in the communication
unit
D8140, D8141
D8340, D8341
D8142, D8143
D8350, D8351
D8145
D8342(Y000)
D8352(Y001)
D8343, D8344(Y000)
D8353, D8354(Y001)
Change allocation to the
Acceleration time
D8348(Y000), D8358(Y001) corresponding device.
Deceleration time
D8349(Y000), D8359(Y001)
Y004
Y004 can be changed to
another Y device specified
by D8464 while M8464
(Clear signal device
designation function enable
flag) is ON.
D8146, D8147
D8148
instruction
12 Positioning
Clear signal for pulse Y000 Y002
30
Caution
Since the link time becomes
shorter, check again the
update timing of link
devices.
In the FX3GC series, the
terminal resistance is built
in the communication unit.
Select the resistance value
using a selection switch.
3.Replacement of FX1NC series
19 PRUN instruction
The ZRST instruction resets
not only the designated
counter value, but also
resets the coil (in the
previous status) for the
counter.
When the ZRST instruction
which designates a same
device as the counter OUT
instruction is executed, the
counter value becomes 1
in the next scan if the drive
contact remains ON.
If M devices are
If M devices are
designated in S· and D·,
designated in S· and D·,
and the number of devices and the number of devices
necessary for operation
necessary for operation
exceeds the range of M
exceeds the range of M
devices, it is not an error,
devices, an operation error
but the arithmetic operation (6706) occurs, and the
is conducted within the
arithmetic operation is not
possible range.
conducted.
In the FX1N series, to
clear the coil of a timer
or counter, an RST
instruction was needed, but
in the FX3GC series, batch
resetting is possible using
the ZRST instruction.
Change the drive contact for
the counter OUT instruction
to the LDP instruction, or
add the MEP instruction
between the drive contact
and the counter OUT
instruction.
In the FX3GC series,
the error detection in
instruction execution is
implemented. Please check
the program, and change the
device allocation so as to
avoid errors.
31
A
B
C
Frequently
asked
questions
Combined operation of the
ZRST instruction and a
18 counter*.
* : Excluding high-speed
counter
The ZRST instruction resets
the designated counter value,
but does not reset the coil (in
the previous status) for the
counter.
Even if the ZRST instruction
which designates a same
device as the counter OUT
instruction is programmed,
the counter does not start
counting unless the contact is
changed from OFF to ON.
If the ZRST instruction
designating a timer or
counter as the operand is
executed, the coil of this
timer or counter is also
cleared.
Change the drive contact for
the PLS instruction to the
LDP instruction, or add the
MEP instruction between
the drive contact and the
PLS instruction.
Refer to “7.12 Cautions
on the PLS and PLF
instructions” in the FX3G/
FX3U/FX3GC/FX3UC
Programming Manual for
the details.
4
Related
manuals
of coil by ZRST
17 Clear
instruction
If the ZRST instruction
designating a timer or
counter as the operand is
executed, the coil of these
timers or counters are not
cleared.
The number of occupied
points is increased. Confirm
devices are allocated
correctly.
3
Models affected
by production
termination
The ZRST instruction resets
not only the state of the
The ZRST instruction
designated device, but also
resets only the state of the
resets the previous status for
designated device.
the PLS or PLF instructions.
When the ZRST instruction When the ZRST instruction
and PLS instruction
and PLS instruction designate
designate the same device
the same device and the
Combined
operation
of
the
16 ZRST and PLS instructions and the ZRST instruction
ZRST instruction has been
has been programmed
programmed previously, the
previously, the PLS
PLS instruction is performed
instruction is not performed again and sets to ON the
again unless the drive
designated device after the
contact is changed from
ZRST instruction is executed
OFF to ON.
if the drive contact for the PLS
instruction remains ON.
Introduction
S3 occupies 29 points.
In the FX3GC series, error
detection before RUN is
implemented.
Check the program, and
correct it to avoid errors.
2
Program
changeover
method
S3 occupies 25 points.
Change allocation to the
corresponding device.
Replacement of
FX1NC series
Occupied points for S3 of
15 the PID instruction
Caution
Replacement of
FX1N series
Operational difference
FX3GC series
FX1NC series
Y005
Y004 can be changed to
another Y device specified
instruction
13 Positioning
by D8465 while M8465
Clear signal for pulse Y001 Y003
(Clear signal device
designation function enable
flag) is ON.
Basic and applied instructions
If the destination of a jump or
call is not available, when not
If the destination of a jump in RUN state, a syntax error
occurs.
or call is not available, an
However, if the pointer is
14 Pointer designation in CJ
operation
error
occurs
when
and CALL instructions
the CJ or CALL instruction indexed, an operation error
occurs when the CJ or CALL
is executed.
instruction is executed in the
same way as the FX1N series.
Item
1
3.Replacement of FX1NC series
Item
Operational difference
FX3GC series
FX1NC series
Caution
Special devices
20 Special auxiliary relay
M8004 Error detection
Clear timing of M8024
21 (BMOV direction
designation)
Clear the devices M8031
22 (Non-latched memory all
clear) and M8032 (Latched
memory all clear).
timing of M8049
23 Clear
(Annunciator enable)
timing of M8050 to
24 Clear
M8059 (Interrupt disable)
Clear timing of M8063
25 and D8063 (Serial
communication error)
for analog special
26 Devices
expansion
27 Clear timing of M8161
(8-bit processing mode)
Clear timing of special
28 auxiliary relays D8122 and
D8123
M8004 turns ON when
either of M8060, M8061,
M8063, M8064, M8065,
M8066 or M8067 is ON.
M8004 turns ON when
either of M8060, M8061,
M8064, M8065, M8066 or
M8067 is ON.
When M8004 is used to
check errors in M8063, add
the check for M8063.
changed from RUN
When power is turned OFF. When
to STOP
Note that the clear timing is
changed.
Special device D is not
initialized.
Note that cleared devices
are changed.
Special device D is also
initialized.
changed from RUN
When power is turned OFF. When
to STOP
changed from RUN
When power is turned OFF. When
to STOP
Note that the clear timing is
changed.
Note that the clear timing is
changed.
Not cleared when changed
STOP to RUN; when
When changed from STOP When power is turned OFF. from
necessary
to clear, add an
to RUN
initializing program using
the RST command.
M8280 to M8299
Note that available devices
Any devices in the program D8280 to D8299
are changed.
(FX0N-3A)
(FX3U-3A-ADP)
changed from RUN
When power is turned OFF. When
to STOP
Note that the clear timing is
changed.
When changed from STOP
to RUN
Note that the clear timing is
changed.
When changed from RUN
to STOP
Since the object device
If S0 to S899 and S1000 to range differs, add a program
S4095 are ON when M8047 for initializing S1000 to
is enabled.
S4095 using the RST or
ZRST instruction.
the object device
D8040 to D8047 store up to Since
D8040
to
D8047
store
up
to
range
differs,
add a program
data register D8040 8 state numbers in the ON
8 state numbers in the ON
30 Special
for initializing S1000 to
to D8047
state
among
S0
to
S899
and
state among S0 to S999.
S4095 using the RST or
S1000 to S4095.
ZRST instruction.
auxiliary relays
29 Special
M8046
32
If S0 to S999 are ON and
M8047 is enabled.
3.Replacement of FX1NC series
Introduction
1
3.4.2 Device comparison
zz Comparison of FX1NC series and FX3GC series devices
The devices used in FX1NC series can be used in the FX3GC series including special devices.
The following table also shows devices implemented in the FX3GC series.
4 points
6 points
16 points C0 to C15
16 points
16 points C16 to C199
184 points
168 points —
—
20 points C200 to C219
20 points
to C234
15 points C220
(EEPROM keep)
15 points
6 points
6 points
2 points
2 points
C235 to C255
60kHz 4 points
+10kHz 2 points
C246 to C250
60kHz 2 points
or 10kHz 2 points
C251 to C255
30kHz 2 points
+ 5kHz 1 points
2 points
3 points
33
C
Frequently
asked
questions
C235 to C255
60kHz 2 points
+10kHz 4 points
C246 to C250
60kHz 1 points or
10kHz 2 points
C251 to C255
30kHz 1 points
or 5kHz 2 points
46 points
64 points
B
Related
manuals
Highspeed
counter
(EEPROM
keep)
1-phase 1-count
input bi-directional
(32-bit) [variable]
1-phase 2-count
input bi-directional
(32-bit) [variable]
2-phase 2-count
input bi-directional
(32-bit) [variable]
46 points T200 to T245
—
T256 to T319
to T249
4 points T246
(EEPROM keep)
to T255
6 points T250
(EEPROM keep)
A
Models affected
by production
termination
C
T200 to T245
—
T246
to T249
1ms retentive type
(Capacitor keep)
to T255
100ms retentive type T250
(Capacitor keep)
General up counter C0 to C15
(16-bit)
General up counter
(16-bit) EEPROM
C16 to C31
keep
General up counter
(16-bit) Capacitor
C32 to C199
keep
General bi-directional
counter
C200 to C219
(32-bit) up/down
General bito C234
directional counter C220
(Capacitor keep)
(32-bit) up/down
4
Program
changeover
method
Counter
10ms
1ms
3
Replacement of
FX1NC series
T Timer
(on-delay)
Replacement of
FX1N series
 Device comparison table (The shaded cells indicates difference in specification).
Device
FX1NC series
FX3GC series
No.
of
No. of
Division
Use
Number
Number
points
points
General use
M0 to M383
384 points M0 to M383
384 points
1,152
EEPROM keep
M384 to M511
128 points M384 to M1535
points
1,024
Capacitor keep
M512 to M1535
—
—
points
M1536 to M7679
M Auxiliary relay
(They can be set to 6,144
General use
—
—
“latched” when the points
optional battery is
mounted).
256
Special use
M8000 to M8255 points
M8000 to M8511 512 points
For initial state use
S0 to S9
10 points S0 to S9
10 points
(EEPROM keep)
EEPROM keep
S10 to S127
118 points S10 to S999
990 points
Capacitor keep
S128 to S999
872 points —
—
S State relay
S1000 to S4095
(They can be set to 3,096
General use
—
—
“latched” when the points
optional battery is
mounted).
T0 toT199
points
100ms
T0 to T199
200 points (T192 to T199 for 200
8
points
routine)
2
3.Replacement of FX1NC series
General use (16-bit) D0 to D127
EEPROM keep
D128 to D255
(16-bit)
Capacitor keep
D256 to D7999
(16-bit)
128 points D0 to D127
128 points D128 to D1099
7,744
points
—
D1100 to D7999
(They can be set to
General use (16-bit) —
—
“latched” when the
optional battery is
mounted).
D1000 to D7999
D1000 to D7999
(They can be set
(They can be set
as file registers
as file registers
beginning
with
MAX.
beginning with
File register
Data register
D1000
in
increments
7,000
D1000 in increments
EEPROM keep
D (32-bit used in
of 500 points by
points
of 500 points by
a pair)
a parameter in
a parameter in
the program area
the program area
(EEPROM)).
(EEPROM))
Special use (16-bit) D8000 to D8255
256 points D8000 to D8511
V0 to V7
to V7
Index (16-bit)
16 points V0
Z0 to Z7
Z0 to Z7
R0 to R23999
(They can be set to
Extension register
—
—
“latched” when the
(16-bit)
optional battery is
mounted)
ER0 to ER23999
Extension file
They are stored in
—
—
register (16-bit)
the EEPROM built
in the main unit.
For JUMP, CALL branch P0 to P127
128 points P0 to P2047
For input interrupt
I0 ☐☐to I5 ☐☐
6 points I0 ☐☐to I5 ☐☐
P Pointer
For timer interrupt
—
—
I6 ☐☐to I8 ☐☐
128 points
972 points
—
6,900
points
MAX.7,000
points
512 points
16 points
24,000
points
24,000
points
2,048 points
6 points
3 points
3.5 Replacement of PLCs
The following includes main points of caution when replacing main units and expansion equipment.
As for the detail of each item, please refer to the reference page of this manual, and the hardware and
programming manuals of the PLCs and related documents.
Applicable
equipment
Main unit
RS-485
communication
expansion
equipment
Other expansion
equipment
Operation
confirmation
34
Item
Measures and cautions
Reference
page
FX1NC input and output connectors, as well as
24V DC connectors are identical to those of the
FX3GC, in shape and signal arrangement.
Detach the connectors from the FX1NC and
24V DC power connection attach them to the FX3GC.
Make sure FX3GC RS-485 communication
Checking cable size for
equipment conforms to the corresponding wire
wiring of
Section 3.3
size. If it does not conform, change the wire size.
FX2NC-485ADP
Handling of terminal
FX3GC RS-485 communication equipment incorporates
resistance of
terminal resistance. Select the resistance value by using
FX2NC-485ADP
the built-in selection switch.
Wiring to each unit and
Re-wiring is needed for terminal block type
block
equipment.
Operate the replacement sequence program
and hardware equipment, check and adjust the
Operation and test of
equipment function and operation timing. Note the Section 3.4
sequence program
difference in function mentioned in the reference
page, and make sure the equipment operates in
conformity with the designed specification.
Input and output
connection
4.Program conversion method
Introduction
1
4. Program conversion method
4.1 Preparation for program conversion
4.1.1 Program conversion procedure
•• Using the actual system, debug, tune,
and check operation
(see Subsection 4.3.1).
35
B
C
Frequently
asked
questions
Check and tune operation in the actual system
•• Check the program contents, and
correct the program portions where
there are operation differences
(see Subsection 2.4.1, Subsection 2.4.2,
Subsection 3.4.1, Subsection 3.4.2).
A
Related
manuals
Check and correct the program
•• Convert the program from the current
type to the target FX3 series type
(see Subsection 4.2.2, Subsection
4.2.3).
Models affected
by production
termination
Read out the program, and change the PLC type
4
•• Prepare programming tools
(see Subsection 4.1.2, Subsection
4.2.1).
Program
changeover
method
Prepare for program conversion
3
Replacement of
FX1NC series
To convert the program to FX3 series, use an appropriate programming tool, such as a personal computer
software application.
The convert procedure and necessary tools are explained in the following sections.
Replacement of
FX1N series
2
4.Program conversion method
4.1.2 Programming tool
zz Programming tool
Program conversion tools are available in two forms: personal computer software and handy
programming panel (HPP).
Tools with marks in the table below are recommended for program conversion to the FX3 series.
Tools with marks indicate that FX3 series functions cannot be added and that it may not be possible
to convert the program based on the connected device.
Model
GX Works2*1
FX1N, FX1NC
series
FX3G, FX3GC
series
Software
GX Developer
Ver. 8*2
HPP
FX-PCS/
WIN-E






FX-30P
FX-20P
: Can only be programmed within the same functional range as the FX1N series.
 Programming tools supporting the FX3 series
Type
Programming software
Handy programming panel
Product names supporting the FX3 series
GX Developer Ver. 8*2
Japanese (SW8D5C-GPPW-J)
English (SW8D5C-GPPW-E)
GX Works2
Japanese (SW1DNC-GXW2-J)
English (SW1DNC-GXW2-E)
FX-30P
Japanese, English and Chinese
(Simplified Chinese and Traditional Chinese)
*1:FX3GC series requires Ver. 1.77F or later of GX Works2.
*2:In the FX3G series, GX Developer Ver. 8.72A or later is required.
In the FX3GC series, use GX Developer Ver. 8.72A or later, and select “FX3G” as the model.
GX Developer does not support all functions of the FX3G/FX3GC series.
36
4.Program conversion method
2
RS-422/USB converter
FX-USB-AW
Mini Din 8 pins
Replacement of
FX1N series
Personal computer connection
USB
O R
3
RS-232C cable
F2-232CAB-1
D-SUB 9 pins
Mini Din 8 pins
RS-422/RS-232C interface
FX-232AWC-H
USB cable
GT09-C30USB-5P
or
MR-J3USBCBL-3M
• Programming software
- GX Works2 (SW1DNC-GXW2)
- GX Developer(SW£D5C-GPPW)
USB
FX3G and FX3GC series PLCs
(The diagram shows the FX3G PLC).
RS-232C cable
F2-232CAB-1
D-SUB 9 pins
Mini Din 8 pins
RS-422/RS-232C interface
FX-232AWC-H
Personal computer
• Programming software
- GX Works2 (SW1DNC-GXW2)
- GX Developer(SW£D5C-GPPW)
Models affected
by production
termination
A
O R
RS-422 cable
FX-422CAB0
4
Program
changeover
method
USB Mini-B
Personal computer
Replacement of
FX1NC series
RS-422 cable
FX-422CAB0
FX1N and FX1NC series PLCs
(The diagram shows the FX1N PLC).
1
Introduction
zz Connection method
For connecting the programming tool with the PLC, the following cables and interface are additionally
required.
Related
manuals
B
Handy programming panel connection
Frequently
asked
questions
C
Mini Din 8 pins
FX1N, FX1NC, FX3G and FX3GC series PLCs
(The diagram shows the FX3G PLC).
RS-422 cable
FX-20P-CAB0
(packaged together
with FX-30P)
FX-30P
37
4.Program conversion method
4.2 Conversion of program by using GX Works2
This section explains the conversion procedure using the GX Works2 software application.
(The conversion procedure is the same in GX Developer Ver. 8).
4.2.1 Preparation for program conversion
Please prepare the following items before performing conversion of a program to FX3 series using GX Works2.
zz
zz
zz
zz
FX PLC containing the source program, or saved program data.
Personal computer with GX Works2 installed.
Connection cable between PLC and personal computer (See Subsection 4.1.2).
Related manuals (See Appendix B for related manuals).
4.2.2 Reading of program
zz Reading source program from PLC
(1) Connect the FX PLC to the personal computer
(See Subsection 4.1.2).
(2) Start GX Works2, and select “Online” → “Read from
PLC...” from the menu.
(3) Select “FXCPU” for the PLC series selection.
(4) Set the connection destination based on the current
method of connection.
(5) Click “Parameter + Program”, and designate the data
to be read out.
Click “Execute”, and execute reading.
(6) Once PLC reading is complete, confirm the reading
result of the sequence program on the program
display screen.
38
4.Program conversion method
1
Introduction
zz Reading source program from saved project data
(1) Locate the saved data for the source program.
(2) Start GX Works2.
(3) Select and open out the source project.
•• When the project is saved as a GX Works2 type file
Select “Project” → “Open project” from the menu, and select the conversion source file.
•• When the project is saved as a GX Developer type file
Select “Project” → “Open other data” → “Open other project” from the menu, and select the
conversion source file.
(4) Confirm the sequence program on the program display screen.
Replacement of
FX1N series
2
Replacement of
FX1NC series
3
Program
changeover
method
4
Models affected
by production
termination
A
Related
manuals
B
Frequently
asked
questions
C
39
4.Program conversion method
4.2.3 Model change to FX3 series (change of PLC type)
Change the PLC type of the target program to FX3 series.
(1) Select “Project” → “Change PLC type...” from the menu.
(2) In the “Change PLC type...” dialog box, select the FX3
series main unit type to be used from the “PLC type”
drop down list and click “OK”.
(3) A dialog box appears, listing cautions and
asking to confirm the PLC type change.
After reading the contents select “OK”.
When the type change has been completed,
a dialog box confirming that the operation
was successful appears.
40
4.Program conversion method
Introduction
1
4.3 Correction of program and checking of operation
4.3.1 Checking and correction of program
zz To check the sequence program, from the GX Works2 menu, select items to check in “Tool” → “Check
program...” or “Check parameter...”, and execute.
3
Replacement of
FX1NC series
zz Use of simulation function
By using the simulation function of GX Works2, the operation of the program can be checked on the
personal computer before downloading it to the PLC.
From the GX Works2 menu, select “Debug” → “Start/Stop Simulation”. GX Simulator2 starts, and
debugging is possible by examining the operation of the simulated PLC.
2
Replacement of
FX1N series
zz After changing the PLC type to FX3 series, check the program by referring to the program conversion
cautions of each PLC, and check the program contents and correct affected functions.
Program
changeover
method
4
4.3.2 Checking operation
A
Models affected
by production
termination
zz After completing changing the program to FX3 series, use the replacement hardware to run the program
and then check and tune functions and operation timing of applicable equipment.
When checking operation, pay attention to the differences in functions mentioned in this document, and
make sure operation conforms with the designed specification.
Related
manuals
B
Frequently
asked
questions
C
41
Appendix A. Models affected by production termination
Appendix A.Models affected by production termination
In addition to the MELSEC-F series PLCs mentioned in this document, production of the following models
has been terminated prior to the end of October 2014.
Discontinued model
F1 series
F1J series
F2 series
FX0 series
FX0S series
FX0N series
FX1 series
FX2 series
FX2C series
FX2N series
FX2NC series
42
Discontinuation date
September 30, 2000
September 30, 2000
September 30, 1995
June 30, 2002
January 31, 2006
January 31, 2006
June 30, 2002
June 30, 2002
June 30, 2002
September 30, 2012
September 30, 2012
Repair service period
September 30, 2007
September 30, 2007
September 30, 2002
June 30, 2009
January 31, 2013
January 31, 2013
June 30, 2009
June 30, 2009
June 30, 2009
September 30, 2019
September 30, 2019
Appendix B. Related manuals
Appendix B.Related manuals
 FX1N/FX1NC series related
3
Contents
A
Models affected
by production
termination
B
Related
manuals
C
Frequently
asked
questions
43
4
Program
changeover
method
Includes input and output specification, wiring,
mounting instructions, and explanation of basic
commands, application commands and various
devices in FX1N series.
FX1N-BAT user’s manual
Includes names of parts, overall dimensions,
(manual number: JY997D10201)
mounting instructions, and explanation of
maintenance in FX1N-BAT type battery units.
Analog
FX1N-2AD-BD user’s manual
Includes names of parts, overall dimensions,
input and output (manual number: JY992D96201)
mounting instructions, and specifications in
FX1N-2AD-BD type analog input boards.
Includes names of parts, overall dimensions,
FX1N-1DA-BD user’s manual
(manual number: JY992D96401)
mounting instructions, and specifications in
FX1N-1DA-BD type analog output boards.
FX1N-8AV-BD manual
Includes names of parts, overall dimensions,
(manual number: JY992D84601)
mounting instructions, and specifications in
FX1N-8AV-BD type analog volumes.
Includes names of parts, overall dimensions,
FX0N-3A user’s guide
(manual number: JY992D49001)
mounting instructions, and specifications in
FX0N-3A type analog input and output blocks.
Communication FX1N-232-BD user’s guide
Includes names of parts, overall dimensions,
(manual number: JY992D84401)
mounting instructions, and specifications in
FX1N-232-BD type RS-232C communication
boards.
Includes names of parts, overall dimensions,
FX1N-422-BD user’s guide
(manual number: JY992D84101)
mounting instructions, and specifications in
FX1N-422-BD type RS-422 communication
boards.
Includes names of parts, overall dimensions,
FX1N-485-BD user’s guide
(manual number: JY992D84201)
mounting instructions, and specifications in
FX1N-485-BD type RS-485 communication
boards.
FX2NC-232ADP installation manual
Includes names of parts, overall dimensions,
(manual number: JY997D01101)
mounting instructions, and specifications in
FX2NC-232ADP type RS-232C communication
adapters.
Includes names of parts, overall dimensions,
FX2NC-485ADP installation manual
(manual number: JY997D01201)
mounting instructions, and specifications in
FX2NC-485ADP type RS-485 communication
adapters.
Programming
The FX series of programmable controller Includes sequence program instructions such
as basic commands, step ladder commands,
programming manual II (FX1S, FX1N,
FX2N and FX2NC)
application commands, and various devices in
(manual number: JY992D88101)
FX1S, FX1N, FX2N, and FX2NC series .
Main unit
Replacement of
FX1NC series
Type
Reference document
Manual name
(manual number)
FX1N series hardware manual
(manual number: JY992D89301)
2
Replacement of
FX1N series
Before use, please read this document together with the user’s manual of the PLC main unit, and the manual
of the program conversion tool used. Read these manuals carefully to obtain a full understanding of the
product specifications and operations, prior to starting operation.
The necessary manuals are available from your local representative.
Introduction
1
Appendix B. Related manuals
 FX3G series related
Main unit
Reference document
Manual name
(manual number)
FX3G series user’s manual
[hardware edition]
(manual number: JY997D31301)
FX2N-CNV-BC user’s guide
(manual number: JY992D66601)
Extension
FX3G-4EX-BD user’s manual
(manual number: JY997D51301)
Type
FX3G-2EYT-BD user’s manual
(manual number: JY997D51401)
Analog
FX3G, FX3U, FX3GC and FX3UC
input and output series user’s manual
[analog control edition]
(manual number: JY997D16701)
FX3G-2AD-BD installation manual
(manual number: JY997D33501)
Analog input
(temperature
control)
44
Contents
Includes FX3G series input and output specifications
and hardware instructions such as wiring, mounting
instructions.
Includes system configuration and connection
procedure of FX2N-CNV-BC type connector
conversion adapters.
Includes names of parts, overall dimensions, mounting
instructions, and specifications of FX3G-4EX-BD type
input expansion boards.
Includes names of parts, overall dimensions, mounting
instructions, and specifications of FX3G-2EYT-BD
type output expansion boards.
Includes FX3G, FX3U, FX3GC and FX3UC series
analog control.
Includes names of parts, overall dimensions, mounting
instructions, and specifications in FX3G-2AD-BD type
analog input boards.
FX3G-1DA-BD installation manual Includes names of parts, overall dimensions, mounting
(manual number: JY997D33601)
instructions, and specifications in FX3G-1DA-BD type
analog output boards.
FX3G-8AV-BD installation manual
Includes names of parts, overall dimensions, mounting
(manual number: JY997D33701)
instructions, and specifications in FX3G-8AV-BD type
analog volumes.
Includes names of parts, overall dimensions, and
FX3U-3A-ADP user’s manual
(manual number: JY997D35601)
specifications in FX3U-3A-ADP type analog input and
output adapters.
Includes names of parts, overall dimensions, and
FX3U-4AD-ADP user’s manual
(manual number: JY997D13901)
specifications in FX3U-4AD-ADP type analog input
adapters.
FX3U-4AD installation manual
Includes names of parts, overall dimensions, mounting
(manual number: JY997D20701)
instructions, and specifications of FX3U-4AD analog
input special function blocks.
Includes names of parts, overall dimensions, mounting
FX3U-4DA-ADP user’s manual
(manual number: JY997D14001)
instructions, and specifications in FX3U-4DA-ADP
type analog output adapters.
FX3U-4DA installation manual
Includes names of parts, overall dimensions, mounting
(manual number: JY997D20801)
instructions, and specifications of FX3U-4DA analog
output special function blocks.
Includes names of parts, overall dimensions, mounting
FX3U-4AD-PT-ADP user’s manual
(manual number: JY997D14701)
instructions, and specifications in FX3U-4AD-PT-ADP
type temperature sensor input adapters.
FX3U-4AD-PTW-ADP user’s manual Includes names of parts, overall dimensions, mounting
(manual number: JY997D29101)
instructions, and specifications in FX3U-4AD-PTWADP type temperature sensor input adapters.
FX3U-4AD-PNK-ADP user’s manual Includes names of parts, overall dimensions, mounting
(manual number: JY997D29201)
instructions, and specifications of FX3U-4AD-PNKADP type temperature sensor input adapters.
FX3U-4AD-TC-ADP user’s manual Includes names of parts, overall dimensions,
(manual number: JY997D14801)
and specifications in FX3U-4AD-TC-ADP type
temperature sensor input adapters.
Includes names of parts, overall dimensions, mounting
FX3U-4LC user’s manual
(manual number: JY997D39101)
instructions, and specifications of FX3U-4LC
temperature special function blocks.
Appendix B. Related manuals
Introduction
3
4
A
Models affected
by production
termination
B
Related
manuals
C
Frequently
asked
questions
45
2
Program
changeover
method
Includes configurations of simplified inter-PC link/parallel
link/computer link/inverter communication/no-procedure
communication/programming communication, function
explanation, and program examples.
FX3G-232-BD installation manual
Includes names of parts, overall dimensions, mounting
(manual number: JY997D32001)
instructions, and specifications in FX3G-232-BD type
RS-232C communication boards.
Includes names of parts, overall dimensions, mounting
FX3G-422-BD installation manual
(manual number: JY997D32101)
instructions, and specifications in FX3G-422-BD type
RS-422 communication boards.
FX3G-485-BD installation manual
Includes names of parts, overall dimensions, mounting
(manual number: JY997D32201)
instructions, and specifications in FX3G-485-BD type
RS-485 communication boards.
Includes names of parts, overall dimensions, mounting
FX3G-485-BD-RJ user’s manual
(manual number: JY997D51501)
instructions, and specifications of FX3G-485-BD-RJ
type RS-485 communication board.
FX3U-232ADP-MB installation manual Includes names of parts, overall dimensions, mounting
(manual number: JY997D26401)
instructions, and specifications of FX3U-232ADP-MB
type RS-232C(MODBUS®) communication adapters.
FX3U-485ADP-MB installation manual Includes names of parts, overall dimensions, mounting
(manual number: JY997D26301)
instructions, and specifications of FX3U-485ADP-MB
type RS-485(MODBUS) communication adapters.
Includes names of parts, overall dimensions, and
FX2N-64CL-M user’s manual
[detailed volume]
specifications in FX2N-64CL-M type CC-Link/LT
(manual number: JY997D08501)
master blocks.
FX2N-16CCL-M user’s manual
Includes names of parts, overall dimensions, and
(manual number: JY992D93101)
specifications in FX2N-16CCL-M type CC-Link
master blocks.
Includes names of parts, overall dimensions, and
FX2N-32CCL user’s manual
(manual number: JY992D71801)
specifications in FX2N-32CCL type CC-Link slave blocks.
FX3U-16CCL-M user’s manual
Includes names of parts, overall dimensions, and
(manual number: JY997D43601)
specifications in FX3U-16CCL-M type CC-Link
master blocks.
Includes names of parts, overall dimensions, and
FX3U-64CCL user’s manual
(manual number: JY997D30301)
specifications in FX3U-64CCL type CC-Link V2
interface blocks.
Includes names of parts, overall dimensions, and
FX3U-ENET-ADP user’s manual
(manual number: JY997D45801)
specifications in FX3U-ENET-ADP type Ethernet
communication adapters.
FX3U-ENET user’s manual
Includes names of parts, overall dimensions, mounting
(manual number: JY997D18101)
instructions, and specifications of FX3U-ENET type
Ethernet communication special function blocks.
Includes names of parts, overall dimensions, mounting
FX3U-32DP user’s manual
(manual number: JY997D25201)
instructions, and specifications of FX3U-32DP type
PROFIBUS-DP interface block communication special
function blocks.
Includes names of parts, overall dimensions, mounting
FX3U-CAN user’s manual
(manual number: JY997D43301)
instructions, and specifications of FX3U-ENET type
CANopen® interface block communication special
function blocks.
Includes names of parts, overall dimensions, mounting
FX3U-J1939 user’s manual
(manual number: JY997D43101)
instructions, and specifications of FX3U-J1939 type
J1939 system interface block communication special
function blocks.
Replacement of
FX1NC series
Network
Contents
Replacement of
FX1N series
Reference document
Manual name
Type
(manual number)
Communication FX series user’s manual [data
communication control edition]
(manual number: JY997D16901)
1
Appendix B. Related manuals
Reference document
Manual name
Type
(manual number)
Programming
FX3G, FX3U, FX3GC, FX3UC and
FX3S series programming manual
[basic & applied Instruction Edition]
(manual number: JY997D16601)
FX-30P operation manual
(manual number: JY997D34401)
46
Contents
Includes sequence program instructions such as
basic commands, step ladder commands, application
commands, and description of various devices in
FX3G, FX3U, FX3GC, and FX3UC series.
Includes sequence program instructions such as list
editing basic commands, step ladder commands, and
application commands.
Appendix B. Related manuals
1
Type
Main unit
FX3U-4AD installation manual
(manual number: JY997D20701)
Analog input
(temperature
control)
FX3U-4AD-PT-ADP user’s manual
(manual number: JY997D14701)
FX3U-4LC user’s manual
(manual number: JY997D39101)
Positioning
Communication
FX3G, FX3U, FX3GC and FX3UC
series user’s manual
[positioning control edition]
(manual number: JY997D16801)
FX series user’s manual
[data communication edition]
(manual number: JY997D16901)
Includes names of parts, overall dimensions,
and specifications in FX3U-4AD-TC-ADP type
temperature sensor input adapters.
Includes names of parts, overall dimensions, mounting
instructions, and specifications of FX3U-4LC
temperature special function blocks.
Includes FX3G, FX3U, FX3GC, and FX3UC series
positioning control.
Includes configurations of simplified inter-PC link/
parallel link/computer link/inverter communication/
no-procedure communication/programming
communication, function explanation, and program
examples.
FX3U-232ADP-MB installation manual Includes names of parts, overall dimensions, mounting
(manual number: JY997D26401)
instructions, and specifications of FX3U-232ADP-MB
type RS-232C(MODBUS) communication adapters.
FX3U-485ADP-MB installation manual Includes names of parts, overall dimensions, mounting
(manual number: JY997D26301)
instructions, and specifications of FX3U-485ADP-MB
type RS-485(MODBUS) communication adapters.
47
A
B
C
Frequently
asked
questions
FX3U-4AD-TC-ADP user’s manual
(manual number: JY997D14801)
4
Related
manuals
FX3U-4AD-PTW-ADP user’s
manual
(manual number: JY997D29101)
FX3U-4AD-PNK-ADP user’s
manual
(manual number: JY997D29201)
Includes names of parts, overall dimensions, and
specifications in FX3U-3A-ADP type analog input and
output adapters.
Includes names of parts, overall dimensions, and
specifications in FX3U-4AD-ADP type analog input
adapters.
Includes names of parts, overall dimensions, mounting
instructions, and specifications of FX3U-4AD analog
input special function blocks.
Includes names of parts and overall dimensions in
FX3U-4DA-ADP type analog output adapters.
Includes names of parts, overall dimensions, mounting
instructions, and specifications of FX3U-4DA analog
output special function blocks.
Includes names of parts, overall dimensions, and
specifications in FX3U-4AD-PT-ADP type temperature
sensor input adapters.
Includes names of parts, overall dimensions, and
specifications in FX3U-4AD-PTW-ADP type
temperature sensor input adapters.
Includes names of parts, overall dimensions, mounting
instructions, and specifications of FX3U-4AD-PNKADP type temperature sensor input adapters.
Models affected
by production
termination
FX3U-4DA-ADP user’s manual
(manual number: JY997D14001)
FX3U-4DA installation manual
(manual number: JY997D20801)
3
Program
changeover
method
FX3U-4AD-ADP user’s manual
(manual number: JY997D13901)
2
Includes hardware instructions such as input
and output specifications, wiring, and mounting
instructions in FX3GC series.
Includes system configuration and connection
procedure in FX2N-CNV-BC type connector
conversion adapter.
Includes FX3G, FX3U, FX3GC, and FX3UC series
analog control.
Replacement of
FX1NC series
Analog
FX3G, FX3U, FX3GC, and FX3UC
input and output series user’s manual
[analog control edition]
(manual number: JY997D16701)
FX3U-3A-ADP user’s manual
(manual number: JY997D35601)
Contents
Replacement of
FX1N series
Reference document
Manual name
(manual number)
FX3GC series user’s manual
[hardware edition]
(manual number: JY997D45401)
FX2N-CNV-BC user’s guide
(manual number: JY992D66601)
Introduction
 FX3GC series related
Appendix B. Related manuals
Type
Network
Programming
48
Reference document
Manual name
(manual number)
FX2N-64CL-M user’s manual
[detailed volume]
(manual number: JY997D08501)
FX2N-16CCL-M user’s manual
(manual number: JY992D93101)
Contents
Includes names of parts, overall dimensions, and
specifications in FX2N-64CL-M type CC-Link/LT
master blocks.
Includes names of parts, overall dimensions, and
specifications in FX2N-16CCL-M type CC-Link
master blocks.
Includes names of parts, overall dimensions, and
FX2N-32CCL user’s manual
(manual number: JY992D71801)
specifications in FX2N-32CCL type CC-Link slave
blocks.
FX3U-16CCL-M user’s manual
Includes names of parts, overall dimensions, and
(manual number: JY997D43601)
specifications in FX3U-16CCL-M type CC-Link
master blocks.
Includes names of parts, overall dimensions, and
FX3U-64CCL user’s manual
(manual number: JY997D30301)
specifications in FX3U-64CCL type CC-Link V2
interface blocks.
Includes names of parts, overall dimensions, and
FX3U-ENET-ADP user’s manual
(manual number: JY997D45801)
specifications in FX3U-ENET-ADP type Ethernet
communication adapters.
Includes names of parts, overall dimensions, mounting
FX3U-ENET user’s manual
(manual number: JY997D18101)
instructions, and specifications of FX3U-ENET type
Ethernet communication special function blocks.
Includes names of parts, overall dimensions, mounting
FX3U-32DP user’s manual
(manual number: JY997D25201)
instructions, and specifications of FX3U-32DP type
PROFIBUS-DP interface block communication special
function blocks.
FX3U-CAN user’s manual
Includes names of parts, overall dimensions, mounting
(manual number: JY997D43301)
instructions, and specifications of FX3U-ENET type
CANopen® interface block communication special
function blocks.
Includes names of parts, overall dimensions, mounting
FX3U-J1939 user’s manual
(manual number: JY997D43101)
instructions, and specifications of FX3U-J1939 type
J1939 system interface block communication special
function blocks.
FX3G, FX3U, FX3GC, FX3UC and
Includes sequence program instructions such as
FX3S series programming manual
basic commands, step ladder commands, application
[basic & applied Instruction Edition] commands, and description of various devices in
(manual number: JY997D16601)
FX3G, FX3U, FX3GC, and FX3UC series.
FX-30P operation manual
Includes sequence program instructions such as list
(manual number: JY997D34401)
editing basic commands, step ladder commands, and
application commands in FX series.
Introduction
1
Appendix B. Related manuals
MEMO
Replacement of
FX1N series
2
Replacement of
FX1NC series
3
Program
changeover
method
4
Models affected
by production
termination
A
Related
manuals
B
Frequently
asked
questions
C
49
Appendix C. Frequently asked questions
Appendix C.Frequently asked questions
 PLC
Q
Is there a difference in the maximum program
capacity?
What is the maximum communication speed of
the built-in programming port?
Is the wiring of the FX1N directly usable in the
FX3G?
Are the connectors of the FX1NC detachable and
usable in the FX3GC as replacements?
Can FX1N expansion boards be used by the
FX3G?
Can FX1N optional battery units be used by the
FX3G?
A
The FX1N(C) has 8,000 steps. FX3G(C) has 32,000 steps.
FX1N(C) operates at 19.2 kbps.
FX3G(C) operates at 115.2 kbps.
Yes.
However, an additional wiring that switches between the
sink and source is required. (Use the terminal block for
FX3G).
Yes.
The wiring is also usable.
No.
FX3G expansion boards must be used.
No.
The optional battery FX3U-32BL compatible with the FX3G
series must be used.
 System
Q
Can FX0N extension units and blocks (FX0N-8EX,
etc.) be used by the FX3G(C)?
Can FX1N special extension blocks be used by the
FX3G?
The FX2N-CNV-BC and FX0N-65EC are being
used in the current system. Can they be used by
the FX3 series?
A FX1N(C) special adapter is being used for
communications with the FX2NC. Can it be used
by the FX3G(C) series?
A
No.
Use extension blocks compatible with the FX3U.
The FX0N-3A, FX2N-16LNK-M and FX2N-32ASI-M
cannot be used.
Construct a new system using CC-Link and others.
Yes.
One extension cable can be connected to the system.
No.
Use a communication special adapter compatible with the
FX3U.
 Tool
Q
Can the FX-20P be used with the FX3G(C)?
Can FX-PCS/WIN be used with the FX3G(C)?
Which versions of GX Developer support the
FX3G(C)?
50
A
Yes when “FX1N” is selected as the model.
However, it is limited to the instructions and device range of
the FX1N series.
Yes when “FX1N” is selected as the model.
However, corresponding commands and the ranges of
devices are limited to the functional range of the FX1N.
The FX3G series is supported in GX Developer Ver. 8.72A
or later.
When using the FX3GC series, select “FX3G” as the model.
Earlier versions of the software may be used by selecting
“FX1N”. However, it is limited to the instructions and
device range of the FX1N series.
Appendix C. Frequently asked questions
Q
Can the FX-DU series of display units be
connected directly to the FX3G(C)?
2
Replacement of
FX1N series
A
Yes. (Screen program modification is required when the
sequence program is changed). However, corresponding
commands and the ranges of devices are limited to the
functional range of the FX1N.
Can the F940GOT series be connected directly to Yes. (Screen program modification is required when the
sequence program is changed). However, corresponding
the FX3G(C)?
commands and the ranges of devices are limited to the
functional range of the FX1N.
Introduction
1
 Connection of display units
Replacement of
FX1NC series
3
Program
changeover
method
4
Models affected
by production
termination
A
Related
manuals
B
Frequently
asked
questions
C
51
Revision history
Revision history
Date compiled
Oct. 2014
52
Sub-number
A
First edition
Contents
FX CPU
FX(FX1N,FX1NC)→FX3 series Replacement Guidance
HEAD OFFICE : TOKYO BUILDING, 2-7-3 MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
HIMEJI WORKS : 840, CHIYODA CHO, HIMEJI, JAPAN
JY997D57901A
(MEE)
Effective Oct. 2014
Specifications are subject to change without notice.